57251 has 2 divisors, whose sum is σ = 57252. Its totient is φ = 57250.

The previous prime is 57241. The next prime is 57259. The reversal of 57251 is 15275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57251 - 2¹⁴ = 40867 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57259) 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, 28625 + 28626.

It is an arithmetic number, because the mean of its divisors is an integer number (28626).

2⁵⁷²⁵¹ is an apocalyptic number.

57251 is a deficient number, since it is larger than the sum of its proper divisors (1).

57251 is an equidigital number, since it uses as much as digits as its factorization.

57251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 350, while the sum is 20.

The square root of 57251 is about 239.2718119629. The cubic root of 57251 is about 38.5414182924.

The spelling of 57251 in words is "fifty-seven thousand, two hundred fifty-one".