57872057 has 2 divisors, whose sum is σ = 57872058. Its totient is φ = 57872056.

The previous prime is 57872027. The next prime is 57872077. The reversal of 57872057 is 75027875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39175081 + 18696976 = 6259^2 + 4324^2 .

It is a cyclic number.

It is not a de Polignac number, because 57872057 - 2¹⁴ = 57855673 is a prime.

It is a super-4 number, since 4×57872057⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (57872027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28936028 + 28936029.

It is an arithmetic number, because the mean of its divisors is an integer number (28936029).

Almost surely, 2^57872057 is an apocalyptic number.

It is an amenable number.

57872057 is a deficient number, since it is larger than the sum of its proper divisors (1).

57872057 is an equidigital number, since it uses as much as digits as its factorization.

57872057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 57872057 is about 7607.3685989309. The cubic root of 57872057 is about 386.8028271790.

The spelling of 57872057 in words is "fifty-seven million, eight hundred seventy-two thousand, fifty-seven".