57251851 has 2 divisors, whose sum is σ = 57251852. Its totient is φ = 57251850.

The previous prime is 57251849. The next prime is 57251879. The reversal of 57251851 is 15815275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57251851 - 2¹ = 57251849 is a prime.

Together with 57251849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57251881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28625925 + 28625926.

It is an arithmetic number, because the mean of its divisors is an integer number (28625926).

Almost surely, 2^57251851 is an apocalyptic number.

57251851 is a deficient number, since it is larger than the sum of its proper divisors (1).

57251851 is an equidigital number, since it uses as much as digits as its factorization.

57251851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14000, while the sum is 34.

The square root of 57251851 is about 7566.4952917450. The cubic root of 57251851 is about 385.4160925605.

The spelling of 57251851 in words is "fifty-seven million, two hundred fifty-one thousand, eight hundred fifty-one".