56553266235565 has 64 divisors (see below), whose sum is σ = 76606280997120. Its totient is φ = 39720718080000.

The previous prime is 56553266235551. The next prime is 56553266235611.

It is a happy number.

56553266235565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56553266235565 - 2¹¹ = 56553266233517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56553266235497 and 56553266235506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1183618846 + ... + 1183666624.

It is an arithmetic number, because the mean of its divisors is an integer number (1196973140580).

Almost surely, 2^{56553266235565} is an apocalyptic number.

56553266235565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56553266235565 is a deficient number, since it is larger than the sum of its proper divisors (20053014761555).

56553266235565 is a wasteful number, since it uses less digits than its factorization.

56553266235565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53134.

The product of its digits is 729000000, while the sum is 64.

The spelling of 56553266235565 in words is "fifty-six trillion, five hundred fifty-three billion, two hundred sixty-six million, two hundred thirty-five thousand, five hundred sixty-five".