57157469 has 4 divisors (see below), whose sum is σ = 57385440. Its totient is φ = 56929500.

The previous prime is 57157421. The next prime is 57157501. The reversal of 57157469 is 96475175.

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 a de Polignac number, because none of the positive numbers 2^k-57157469 is a prime.

It is a super-2 number, since 2×57157469² = 6533952524971922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57157409) 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, 113609 + ... + 114110.

It is an arithmetic number, because the mean of its divisors is an integer number (14346360).

Almost surely, 2^57157469 is an apocalyptic number.

It is an amenable number.

57157469 is a deficient number, since it is larger than the sum of its proper divisors (227971).

57157469 is a wasteful number, since it uses less digits than its factorization.

57157469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227970.

The product of its digits is 264600, while the sum is 44.

The square root of 57157469 is about 7560.2558819130. The cubic root of 57157469 is about 385.2041847145.

The spelling of 57157469 in words is "fifty-seven million, one hundred fifty-seven thousand, four hundred sixty-nine".