54408931 has 2 divisors, whose sum is σ = 54408932. Its totient is φ = 54408930.

The previous prime is 54408923. The next prime is 54408943. The reversal of 54408931 is 13980445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54408931 - 2³ = 54408923 is a prime.

It is a super-2 number, since 2×54408931² = 5920663545125522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54403931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27204465 + 27204466.

It is an arithmetic number, because the mean of its divisors is an integer number (27204466).

Almost surely, 2^54408931 is an apocalyptic number.

54408931 is a deficient number, since it is larger than the sum of its proper divisors (1).

54408931 is an equidigital number, since it uses as much as digits as its factorization.

54408931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 54408931 is about 7376.2409803368. The cubic root of 54408931 is about 378.9280291628.

The spelling of 54408931 in words is "fifty-four million, four hundred eight thousand, nine hundred thirty-one".