57512251 has 2 divisors, whose sum is σ = 57512252. Its totient is φ = 57512250.

The previous prime is 57512233. The next prime is 57512267. The reversal of 57512251 is 15221575.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57512251 - 2⁵ = 57512219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57512281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28756125 + 28756126.

It is an arithmetic number, because the mean of its divisors is an integer number (28756126).

Almost surely, 2^57512251 is an apocalyptic number.

57512251 is a deficient number, since it is larger than the sum of its proper divisors (1).

57512251 is an equidigital number, since it uses as much as digits as its factorization.

57512251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3500, while the sum is 28.

The square root of 57512251 is about 7583.6832080461. The cubic root of 57512251 is about 385.9995413742. Note that the first 3 decimals are identical.

The spelling of 57512251 in words is "fifty-seven million, five hundred twelve thousand, two hundred fifty-one".