56623529555 has 16 divisors (see below), whose sum is σ = 68618223360. Its totient is φ = 44852597472.

The previous prime is 56623529551. The next prime is 56623529561. The reversal of 56623529555 is 55592532665.

It is a cyclic number.

It is not a de Polignac number, because 56623529555 - 2² = 56623529551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56623529497 and 56623529506.

It is not an unprimeable number, because it can be changed into a prime (56623529551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064912 + ... + 1116818.

It is an arithmetic number, because the mean of its divisors is an integer number (4288638960).

Almost surely, 2^56623529555 is an apocalyptic number.

56623529555 is a deficient number, since it is larger than the sum of its proper divisors (11994693805).

56623529555 is a wasteful number, since it uses less digits than its factorization.

56623529555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54058.

The product of its digits is 12150000, while the sum is 53.

The spelling of 56623529555 in words is "fifty-six billion, six hundred twenty-three million, five hundred twenty-nine thousand, five hundred fifty-five".