55105606056 has 32 divisors (see below), whose sum is σ = 137772401760. Its totient is φ = 18367417152.

The previous prime is 55105606033. The next prime is 55105606067. The reversal of 55105606056 is 65060650155.

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, 395931 + ... + 516693.

It is an arithmetic number, because the mean of its divisors is an integer number (4305387555).

Almost surely, 2^55105606056 is an apocalyptic number.

It is an amenable number.

55105606056 is an abundant number, since it is smaller than the sum of its proper divisors (82666795704).

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

55105606056 is a wasteful number, since it uses less digits than its factorization.

55105606056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139785 (or 139781 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 55105606056 in words is "fifty-five billion, one hundred five million, six hundred six thousand, fifty-six".