55066890756 has 48 divisors (see below), whose sum is σ = 136731369600. Its totient is φ = 17189061120.

The previous prime is 55066890727. The next prime is 55066890761. The reversal of 55066890756 is 65709866055.

It is a junction number, because it is equal to n+sod(n) for n = 55066890696 and 55066890705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637635 + ... + 718826.

It is an arithmetic number, because the mean of its divisors is an integer number (2848570200).

Almost surely, 2^55066890756 is an apocalyptic number.

It is an amenable number.

55066890756 is an abundant number, since it is smaller than the sum of its proper divisors (81664478844).

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

55066890756 is a wasteful number, since it uses less digits than its factorization.

55066890756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356684 (or 1356682 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 57.

The spelling of 55066890756 in words is "fifty-five billion, sixty-six million, eight hundred ninety thousand, seven hundred fifty-six".