57102887 has 2 divisors, whose sum is σ = 57102888. Its totient is φ = 57102886.

The previous prime is 57102821. The next prime is 57102907. The reversal of 57102887 is 78820175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57102887 - 2²⁰ = 56054311 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57102887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57102587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28551443 + 28551444.

It is an arithmetic number, because the mean of its divisors is an integer number (28551444).

Almost surely, 2^57102887 is an apocalyptic number.

57102887 is a deficient number, since it is larger than the sum of its proper divisors (1).

57102887 is an equidigital number, since it uses as much as digits as its factorization.

57102887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 57102887 is about 7556.6452212606. The cubic root of 57102887 is about 385.0815299309.

The spelling of 57102887 in words is "fifty-seven million, one hundred two thousand, eight hundred eighty-seven".