57245977 has 2 divisors, whose sum is σ = 57245978. Its totient is φ = 57245976.

The previous prime is 57245941. The next prime is 57246023. The reversal of 57245977 is 77954275.

It is an a-pointer prime, because the next prime (57246023) can be obtained adding 57245977 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48149721 + 9096256 = 6939^2 + 3016^2 .

It is a cyclic number.

It is not a de Polignac number, because 57245977 - 2¹⁵ = 57213209 is a prime.

It is not a weakly prime, because it can be changed into another prime (57245077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28622988 + 28622989.

It is an arithmetic number, because the mean of its divisors is an integer number (28622989).

Almost surely, 2^57245977 is an apocalyptic number.

It is an amenable number.

57245977 is a deficient number, since it is larger than the sum of its proper divisors (1).

57245977 is an equidigital number, since it uses as much as digits as its factorization.

57245977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 617400, while the sum is 46.

The square root of 57245977 is about 7566.1071232173. The cubic root of 57245977 is about 385.4029109688.

The spelling of 57245977 in words is "fifty-seven million, two hundred forty-five thousand, nine hundred seventy-seven".