57249754 has 4 divisors (see below), whose sum is σ = 85874634. Its totient is φ = 28624876.

The previous prime is 57249733. The next prime is 57249779. The reversal of 57249754 is 45794275.

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., 31979025 + 25270729 = 5655^2 + 5027^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57249754.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14312437 + ... + 14312440.

Almost surely, 2^57249754 is an apocalyptic number.

57249754 is a deficient number, since it is larger than the sum of its proper divisors (28624880).

57249754 is a wasteful number, since it uses less digits than its factorization.

57249754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28624879.

The product of its digits is 352800, while the sum is 43.

The square root of 57249754 is about 7566.3567190557. The cubic root of 57249754 is about 385.4113868761.

The spelling of 57249754 in words is "fifty-seven million, two hundred forty-nine thousand, seven hundred fifty-four".