57080987 has 2 divisors, whose sum is σ = 57080988. Its totient is φ = 57080986.

The previous prime is 57080981. The next prime is 57080999. The reversal of 57080987 is 78908075.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57080987 - 2⁴ = 57080971 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (57080981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28540493 + 28540494.

It is an arithmetic number, because the mean of its divisors is an integer number (28540494).

Almost surely, 2^57080987 is an apocalyptic number.

57080987 is a deficient number, since it is larger than the sum of its proper divisors (1).

57080987 is an equidigital number, since it uses as much as digits as its factorization.

57080987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 57080987 is about 7555.1960265767. The cubic root of 57080987 is about 385.0322950365.

The spelling of 57080987 in words is "fifty-seven million, eighty thousand, nine hundred eighty-seven".