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56254510553 = 411801761833
BaseRepresentation
bin110100011001000001…
…111011010111011001
312101012110210020010212
4310121001323113121
51410202123314203
641502025220505
74031016310253
oct643101732731
9171173706125
1056254510553
112194822843a
12aa9b631735
1353c679a247
142a19270cd3
1516e3a031d8
hexd1907b5d9

56254510553 has 8 divisors (see below), whose sum is σ = 57658644456. Its totient is φ = 54851904000.

The previous prime is 56254510489. The next prime is 56254510567. The reversal of 56254510553 is 35501545265.

It can be written as a sum of positive squares in 4 ways, for example, as 8414759824 + 47839750729 = 91732^2 + 218723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56254510553 - 26 = 56254510489 is a prime.

It is a super-4 number, since 4×562545105534 (a number of 44 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56254510553.

It is not an unprimeable number, because it can be changed into a prime (56254518553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307076 + ... + 454757.

It is an arithmetic number, because the mean of its divisors is an integer number (7207330557).

Almost surely, 256254510553 is an apocalyptic number.

It is an amenable number.

56254510553 is a deficient number, since it is larger than the sum of its proper divisors (1404133903).

56254510553 is a wasteful number, since it uses less digits than its factorization.

56254510553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763675.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 56254510553 in words is "fifty-six billion, two hundred fifty-four million, five hundred ten thousand, five hundred fifty-three".

Divisors: 1 41 1801 73841 761833 31235153 1372061233 56254510553