57136451 has 4 divisors (see below), whose sum is σ = 57452304. Its totient is φ = 56820600.

The previous prime is 57136447. The next prime is 57136459. The reversal of 57136451 is 15463175.

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 57136451 - 2² = 57136447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57136459) 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, 157655 + ... + 158016.

It is an arithmetic number, because the mean of its divisors is an integer number (14363076).

Almost surely, 2^57136451 is an apocalyptic number.

57136451 is a deficient number, since it is larger than the sum of its proper divisors (315853).

57136451 is a wasteful number, since it uses less digits than its factorization.

57136451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315852.

The product of its digits is 12600, while the sum is 32.

The square root of 57136451 is about 7558.8657217866. The cubic root of 57136451 is about 385.1569630403.

The spelling of 57136451 in words is "fifty-seven million, one hundred thirty-six thousand, four hundred fifty-one".