57431567 has 2 divisors, whose sum is σ = 57431568. Its totient is φ = 57431566.

The previous prime is 57431551. The next prime is 57431609. The reversal of 57431567 is 76513475.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57431567 - 2⁴ = 57431551 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 57431567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57431537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28715783 + 28715784.

It is an arithmetic number, because the mean of its divisors is an integer number (28715784).

Almost surely, 2^57431567 is an apocalyptic number.

57431567 is a deficient number, since it is larger than the sum of its proper divisors (1).

57431567 is an equidigital number, since it uses as much as digits as its factorization.

57431567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 38.

The square root of 57431567 is about 7578.3617622808. The cubic root of 57431567 is about 385.8189505041.

The spelling of 57431567 in words is "fifty-seven million, four hundred thirty-one thousand, five hundred sixty-seven".