54257023216507 has 12 divisors (see below), whose sum is σ = 57637021695760. Its totient is φ = 51064841494656.

The previous prime is 54257023216457. The next prime is 54257023216519. The reversal of 54257023216507 is 70561232075245.

It is not a de Polignac number, because 54257023216507 - 2¹⁵ = 54257023183739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54257023216547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24954673 + ... + 27041629.

Almost surely, 2^{54257023216507} is an apocalyptic number.

54257023216507 is a deficient number, since it is larger than the sum of its proper divisors (3379998479253).

54257023216507 is a wasteful number, since it uses less digits than its factorization.

54257023216507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176950 (or 2176933 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 49.

The spelling of 54257023216507 in words is "fifty-four trillion, two hundred fifty-seven billion, twenty-three million, two hundred sixteen thousand, five hundred seven".