57520487 has 2 divisors, whose sum is σ = 57520488. Its totient is φ = 57520486.

The previous prime is 57520483. The next prime is 57520501. The reversal of 57520487 is 78402575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57520487 - 2² = 57520483 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 57520487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57520481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28760243 + 28760244.

It is an arithmetic number, because the mean of its divisors is an integer number (28760244).

Almost surely, 2^57520487 is an apocalyptic number.

57520487 is a deficient number, since it is larger than the sum of its proper divisors (1).

57520487 is an equidigital number, since it uses as much as digits as its factorization.

57520487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 57520487 is about 7584.2261965213. The cubic root of 57520487 is about 386.0179660891.

The spelling of 57520487 in words is "fifty-seven million, five hundred twenty thousand, four hundred eighty-seven".