56511005106 has 16 divisors (see below), whose sum is σ = 117936010944. Its totient is φ = 18018001584.

The previous prime is 56511005099. The next prime is 56511005143. The reversal of 56511005106 is 60150011565.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204749881 + ... + 204750156.

It is an arithmetic number, because the mean of its divisors is an integer number (7371000684).

Almost surely, 2^56511005106 is an apocalyptic number.

56511005106 is an abundant number, since it is smaller than the sum of its proper divisors (61425005838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56511005106 is a wasteful number, since it uses less digits than its factorization.

56511005106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409500065.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 56511005106 in words is "fifty-six billion, five hundred eleven million, five thousand, one hundred six".