57409579 has 2 divisors, whose sum is σ = 57409580. Its totient is φ = 57409578.

The previous prime is 57409577. The next prime is 57409619. The reversal of 57409579 is 97590475.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57409579 - 2¹ = 57409577 is a prime.

Together with 57409577, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57409577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28704789 + 28704790.

It is an arithmetic number, because the mean of its divisors is an integer number (28704790).

Almost surely, 2^57409579 is an apocalyptic number.

57409579 is a deficient number, since it is larger than the sum of its proper divisors (1).

57409579 is an equidigital number, since it uses as much as digits as its factorization.

57409579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 57409579 is about 7576.9109140863. The cubic root of 57409579 is about 385.7697065639.

It can be divided in two parts, 5740957 and 9, that added together give a triangular number (5740966 = T₃₃₈₈).

The spelling of 57409579 in words is "fifty-seven million, four hundred nine thousand, five hundred seventy-nine".