57505499 has 2 divisors, whose sum is σ = 57505500. Its totient is φ = 57505498.

The previous prime is 57505453. The next prime is 57505523. The reversal of 57505499 is 99450575.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57505499 - 2²⁴ = 40728283 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57505439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28752749 + 28752750.

It is an arithmetic number, because the mean of its divisors is an integer number (28752750).

Almost surely, 2^57505499 is an apocalyptic number.

57505499 is a deficient number, since it is larger than the sum of its proper divisors (1).

57505499 is an equidigital number, since it uses as much as digits as its factorization.

57505499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 57505499 is about 7583.2380287052. The cubic root of 57505499 is about 385.9844351962.

The spelling of 57505499 in words is "fifty-seven million, five hundred five thousand, four hundred ninety-nine".