57272977 has 2 divisors, whose sum is σ = 57272978. Its totient is φ = 57272976.

The previous prime is 57272951. The next prime is 57272981. The reversal of 57272977 is 77927275.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47761921 + 9511056 = 6911^2 + 3084^2 .

It is a cyclic number.

It is not a de Polignac number, because 57272977 - 2⁷ = 57272849 is a prime.

It is not a weakly prime, because it can be changed into another prime (57272177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28636488 + 28636489.

It is an arithmetic number, because the mean of its divisors is an integer number (28636489).

Almost surely, 2^57272977 is an apocalyptic number.

It is an amenable number.

57272977 is a deficient number, since it is larger than the sum of its proper divisors (1).

57272977 is an equidigital number, since it uses as much as digits as its factorization.

57272977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432180, while the sum is 46.

The square root of 57272977 is about 7567.8911857928. The cubic root of 57272977 is about 385.4634930603.

The spelling of 57272977 in words is "fifty-seven million, two hundred seventy-two thousand, nine hundred seventy-seven".