54991058570040 has 64 divisors (see below), whose sum is σ = 164975557370400. Its totient is φ = 14664070582272.

The previous prime is 54991058570033. The next prime is 54991058570083. The reversal of 54991058570040 is 4007585019945.

It is a happy number.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 5128224 + ... + 11673936.

Almost surely, 2^{54991058570040} is an apocalyptic number.

It is an amenable number.

54991058570040 is an abundant number, since it is smaller than the sum of its proper divisors (109984498800360).

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

54991058570040 is a wasteful number, since it uses less digits than its factorization.

54991058570040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615736 (or 6615732 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 57.

The spelling of 54991058570040 in words is "fifty-four trillion, nine hundred ninety-one billion, fifty-eight million, five hundred seventy thousand, forty".