55906266840 has 64 divisors (see below), whose sum is σ = 169739539200. Its totient is φ = 14728716672.

The previous prime is 55906266821. The next prime is 55906266937. The reversal of 55906266840 is 4866260955.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796580 + ... + 2816499.

It is an arithmetic number, because the mean of its divisors is an integer number (2652180300).

Almost surely, 2^55906266840 is an apocalyptic number.

It is an amenable number.

55906266840 is an abundant number, since it is smaller than the sum of its proper divisors (113833272360).

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

55906266840 is a wasteful number, since it uses less digits than its factorization.

55906266840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613176 (or 5613172 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 55906266840 in words is "fifty-five billion, nine hundred six million, two hundred sixty-six thousand, eight hundred forty".