54867931 has 2 divisors, whose sum is σ = 54867932. Its totient is φ = 54867930.

The previous prime is 54867907. The next prime is 54867977. The reversal of 54867931 is 13976845.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54867931 - 2⁵ = 54867899 is a prime.

It is a super-2 number, since 2×54867931² = 6020979704441522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54807931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27433965 + 27433966.

It is an arithmetic number, because the mean of its divisors is an integer number (27433966).

Almost surely, 2^54867931 is an apocalyptic number.

54867931 is a deficient number, since it is larger than the sum of its proper divisors (1).

54867931 is an equidigital number, since it uses as much as digits as its factorization.

54867931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 54867931 is about 7407.2890452581. The cubic root of 54867931 is about 379.9906068777.

The spelling of 54867931 in words is "fifty-four million, eight hundred sixty-seven thousand, nine hundred thirty-one".