57520051 has 4 divisors (see below), whose sum is σ = 58029192. Its totient is φ = 57010912.

The previous prime is 57520037. The next prime is 57520069. The reversal of 57520051 is 15002575.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57520051 - 2¹¹ = 57518003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57519998 and 57520025.

It is not an unprimeable number, because it can be changed into a prime (57520091) 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, 254401 + ... + 254626.

It is an arithmetic number, because the mean of its divisors is an integer number (14507298).

Almost surely, 2^57520051 is an apocalyptic number.

57520051 is a deficient number, since it is larger than the sum of its proper divisors (509141).

57520051 is a wasteful number, since it uses less digits than its factorization.

57520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509140.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 57520051 is about 7584.1974525984. The cubic root of 57520051 is about 386.0169907597.

The spelling of 57520051 in words is "fifty-seven million, five hundred twenty thousand, fifty-one".