57252551 has 2 divisors, whose sum is σ = 57252552. Its totient is φ = 57252550.

The previous prime is 57252541. The next prime is 57252563. The reversal of 57252551 is 15525275.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57252551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57252511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28626275 + 28626276.

It is an arithmetic number, because the mean of its divisors is an integer number (28626276).

Almost surely, 2^57252551 is an apocalyptic number.

57252551 is a deficient number, since it is larger than the sum of its proper divisors (1).

57252551 is an equidigital number, since it uses as much as digits as its factorization.

57252551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17500, while the sum is 32.

The square root of 57252551 is about 7566.5415481579. The cubic root of 57252551 is about 385.4176633403.

The spelling of 57252551 in words is "fifty-seven million, two hundred fifty-two thousand, five hundred fifty-one".