55316457 has 12 divisors (see below), whose sum is σ = 91316160. Its totient is φ = 31609368.

The previous prime is 55316441. The next prime is 55316461. The reversal of 55316457 is 75461355.

55316457 is a `hidden beast` number, since 5 + 5 + 3 + 1 + 645 + 7 = 666.

It is not a de Polignac number, because 55316457 - 2⁴ = 55316441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55316557) 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, 438957 + ... + 439082.

It is an arithmetic number, because the mean of its divisors is an integer number (7609680).

Almost surely, 2^55316457 is an apocalyptic number.

It is an amenable number.

55316457 is a deficient number, since it is larger than the sum of its proper divisors (35999703).

55316457 is a wasteful number, since it uses less digits than its factorization.

55316457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878052 (or 878049 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 55316457 is about 7437.5034117639. The cubic root of 55316457 is about 381.0232279637.

The spelling of 55316457 in words is "fifty-five million, three hundred sixteen thousand, four hundred fifty-seven".