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56125369 = 87763997
BaseRepresentation
bin1101011000011…
…0011110111001
310220121110112101
43112012132321
5103332002434
65322543401
71251025546
oct326063671
9126543471
1056125369
1129754903
1216967b61
13b8214a1
14764dbcd
154dd9b14
hex35867b9

56125369 has 4 divisors (see below), whose sum is σ = 56190244. Its totient is φ = 56060496.

The previous prime is 56125361. The next prime is 56125387. The reversal of 56125369 is 96352165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45968400 + 10156969 = 6780^2 + 3187^2 .

It is a cyclic number.

It is not a de Polignac number, because 56125369 - 23 = 56125361 is a prime.

It is a super-2 number, since 2×561253692 = 6300114090772322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56125361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31122 + ... + 32875.

It is an arithmetic number, because the mean of its divisors is an integer number (14047561).

Almost surely, 256125369 is an apocalyptic number.

It is an amenable number.

56125369 is a deficient number, since it is larger than the sum of its proper divisors (64875).

56125369 is an equidigital number, since it uses as much as digits as its factorization.

56125369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64874.

The product of its digits is 48600, while the sum is 37.

The square root of 56125369 is about 7491.6866592243. The cubic root of 56125369 is about 382.8715264661.

The spelling of 56125369 in words is "fifty-six million, one hundred twenty-five thousand, three hundred sixty-nine".

Divisors: 1 877 63997 56125369