57290537 has 4 divisors (see below), whose sum is σ = 57313680. Its totient is φ = 57267396.

The previous prime is 57290531. The next prime is 57290551. The reversal of 57290537 is 73509275.

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 57290537 - 2⁴ = 57290521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57290537.

It is not an unprimeable number, because it can be changed into a prime (57290531) 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, 7343 + ... + 12980.

It is an arithmetic number, because the mean of its divisors is an integer number (14328420).

Almost surely, 2^57290537 is an apocalyptic number.

It is an amenable number.

57290537 is a deficient number, since it is larger than the sum of its proper divisors (23143).

57290537 is a wasteful number, since it uses less digits than its factorization.

57290537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23142.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 57290537 is about 7569.0512615519. The cubic root of 57290537 is about 385.5028836400.

The spelling of 57290537 in words is "fifty-seven million, two hundred ninety thousand, five hundred thirty-seven".