57288274 has 4 divisors (see below), whose sum is σ = 85932414. Its totient is φ = 28644136.

The previous prime is 57288269. The next prime is 57288281. The reversal of 57288274 is 47288275.

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., 57229225 + 59049 = 7565^2 + 243^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57288274.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14322067 + ... + 14322070.

Almost surely, 2^57288274 is an apocalyptic number.

57288274 is a deficient number, since it is larger than the sum of its proper divisors (28644140).

57288274 is a wasteful number, since it uses less digits than its factorization.

57288274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28644139.

The product of its digits is 250880, while the sum is 43.

The square root of 57288274 is about 7568.9017697418. The cubic root of 57288274 is about 385.4978077318.

Subtracting from 57288274 its reverse (47288275), we obtain a palindrome (9999999).

The spelling of 57288274 in words is "fifty-seven million, two hundred eighty-eight thousand, two hundred seventy-four".