57272879 has 2 divisors, whose sum is σ = 57272880. Its totient is φ = 57272878.

The previous prime is 57272849. The next prime is 57272899. The reversal of 57272879 is 97827275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57272879 - 2⁸ = 57272623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57272849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28636439 + 28636440.

It is an arithmetic number, because the mean of its divisors is an integer number (28636440).

Almost surely, 2^57272879 is an apocalyptic number.

57272879 is a deficient number, since it is larger than the sum of its proper divisors (1).

57272879 is an equidigital number, since it uses as much as digits as its factorization.

57272879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 47.

The square root of 57272879 is about 7567.8847110669. The cubic root of 57272879 is about 385.4632732042.

The spelling of 57272879 in words is "fifty-seven million, two hundred seventy-two thousand, eight hundred seventy-nine".