54915863 has 2 divisors, whose sum is σ = 54915864. Its totient is φ = 54915862.

The previous prime is 54915811. The next prime is 54915877. The reversal of 54915863 is 36851945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54915863 - 2²⁴ = 38138647 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54915863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54915893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27457931 + 27457932.

It is an arithmetic number, because the mean of its divisors is an integer number (27457932).

Almost surely, 2^54915863 is an apocalyptic number.

54915863 is a deficient number, since it is larger than the sum of its proper divisors (1).

54915863 is an equidigital number, since it uses as much as digits as its factorization.

54915863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 54915863 is about 7410.5238006500. The cubic root of 54915863 is about 380.1012264949.

The spelling of 54915863 in words is "fifty-four million, nine hundred fifteen thousand, eight hundred sixty-three".