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56075250932281 = 72821213032
BaseRepresentation
bin11001100000000000010010…
…11010011001101000111001
321100112202000122121020212001
430300000021122121220321
524322214103214313111
6315132340433021001
714545205664333400
oct1460001132315071
9240482018536761
1056075250932281
111695a4202aa769
1263579140b4761
132539b48036b29
14dbc0b1550637
156739a51ca1c1
hex330009699a39

56075250932281 has 27 divisors (see below), whose sum is σ = 65360104301583. Its totient is φ = 47969114311440.

The previous prime is 56075250932273. The next prime is 56075250932359. The reversal of 56075250932281 is 18223905257065.

The square root of 56075250932281 is 7488341.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15310856842281 + 40764394090000 = 3912909^2 + 6384700^2 .

It is not a de Polignac number, because 56075250932281 - 23 = 56075250932273 is a prime.

It is a super-2 number, since 2×560752509322812 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56075250932681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 43035495076 + ... + 43035496378.

Almost surely, 256075250932281 is an apocalyptic number.

56075250932281 is the 7488341-st square number.

56075250932281 is the 3744171-st centered octagonal number.

It is an amenable number.

56075250932281 is a deficient number, since it is larger than the sum of its proper divisors (9284853369302).

56075250932281 is an frugal number, since it uses more digits than its factorization.

56075250932281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 55.

The spelling of 56075250932281 in words is "fifty-six trillion, seventy-five billion, two hundred fifty million, nine hundred thirty-two thousand, two hundred eighty-one".

Divisors: 1 7 49 821 1303 5747 9121 40229 63847 674041 1069763 1697809 4718287 7488341 11884663 33028009 52418387 83192641 878275423 1393901189 6147927961 9757308323 43035495727 68301158261 1144392876169 8010750133183 56075250932281