57390497 has 4 divisors (see below), whose sum is σ = 59885760. Its totient is φ = 54895236.

The previous prime is 57390491. The next prime is 57390499. The reversal of 57390497 is 79409375.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57390497 - 2⁴ = 57390481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57390491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247597 + ... + 1247642.

It is an arithmetic number, because the mean of its divisors is an integer number (14971440).

Almost surely, 2^57390497 is an apocalyptic number.

It is an amenable number.

57390497 is a deficient number, since it is larger than the sum of its proper divisors (2495263).

57390497 is a wasteful number, since it uses less digits than its factorization.

57390497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495262.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 57390497 is about 7575.6515891374. The cubic root of 57390497 is about 385.7269606587.

The spelling of 57390497 in words is "fifty-seven million, three hundred ninety thousand, four hundred ninety-seven".