55527720894 has 48 divisors (see below), whose sum is σ = 127242535680. Its totient is φ = 17451942480.

The previous prime is 55527720889. The next prime is 55527720917. The reversal of 55527720894 is 49802772555.

55527720894 is a `hidden beast` number, since 5 + 5 + 527 + 7 + 20 + 8 + 94 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55527720894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312582 + ... + 456905.

It is an arithmetic number, because the mean of its divisors is an integer number (2650886160).

Almost surely, 2^55527720894 is an apocalyptic number.

55527720894 is an abundant number, since it is smaller than the sum of its proper divisors (71714814786).

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

55527720894 is a wasteful number, since it uses less digits than its factorization.

55527720894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769725 (or 769722 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 55527720894 in words is "fifty-five billion, five hundred twenty-seven million, seven hundred twenty thousand, eight hundred ninety-four".