54715819 has 2 divisors, whose sum is σ = 54715820. Its totient is φ = 54715818.

The previous prime is 54715811. The next prime is 54715831. The reversal of 54715819 is 91851745.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54715819 - 2³ = 54715811 is a prime.

It is a super-2 number, since 2×54715819² = 5987641697681522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54715811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27357909 + 27357910.

It is an arithmetic number, because the mean of its divisors is an integer number (27357910).

Almost surely, 2^54715819 is an apocalyptic number.

54715819 is a deficient number, since it is larger than the sum of its proper divisors (1).

54715819 is an equidigital number, since it uses as much as digits as its factorization.

54715819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 40.

The square root of 54715819 is about 7397.0141949303. The cubic root of 54715819 is about 379.6391287789.

The spelling of 54715819 in words is "fifty-four million, seven hundred fifteen thousand, eight hundred nineteen".