57172051 has 4 divisors (see below), whose sum is σ = 57194104. Its totient is φ = 57150000.

The previous prime is 57172033. The next prime is 57172061. The reversal of 57172051 is 15027175.

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 57172051 - 2¹³ = 57163859 is a prime.

It is a super-3 number, since 3×57172051³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57172061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6525 + ... + 12526.

It is an arithmetic number, because the mean of its divisors is an integer number (14298526).

Almost surely, 2^57172051 is an apocalyptic number.

57172051 is a deficient number, since it is larger than the sum of its proper divisors (22053).

57172051 is a wasteful number, since it uses less digits than its factorization.

57172051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22052.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 57172051 is about 7561.2202057604. The cubic root of 57172051 is about 385.2369396627.

The spelling of 57172051 in words is "fifty-seven million, one hundred seventy-two thousand, fifty-one".