57156434 has 4 divisors (see below), whose sum is σ = 85734654. Its totient is φ = 28578216.

The previous prime is 57156413. The next prime is 57156493. The reversal of 57156434 is 43465175.

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

It can be written as a sum of positive squares in only one way, i.e., 30085225 + 27071209 = 5485^2 + 5203^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57156394 and 57156403.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14289107 + ... + 14289110.

Almost surely, 2^57156434 is an apocalyptic number.

57156434 is a deficient number, since it is larger than the sum of its proper divisors (28578220).

57156434 is a wasteful number, since it uses less digits than its factorization.

57156434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28578219.

The product of its digits is 50400, while the sum is 35.

The square root of 57156434 is about 7560.1874315390. The cubic root of 57156434 is about 385.2018596247.

The spelling of 57156434 in words is "fifty-seven million, one hundred fifty-six thousand, four hundred thirty-four".