57352978 has 4 divisors (see below), whose sum is σ = 86029470. Its totient is φ = 28676488.

The previous prime is 57352957. The next prime is 57352991. The reversal of 57352978 is 87925375.

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., 53978409 + 3374569 = 7347^2 + 1837^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14338243 + ... + 14338246.

Almost surely, 2^57352978 is an apocalyptic number.

57352978 is a deficient number, since it is larger than the sum of its proper divisors (28676492).

57352978 is a wasteful number, since it uses less digits than its factorization.

57352978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28676491.

The product of its digits is 529200, while the sum is 46.

The square root of 57352978 is about 7573.1748956432. The cubic root of 57352978 is about 385.6428860851.

The spelling of 57352978 in words is "fifty-seven million, three hundred fifty-two thousand, nine hundred seventy-eight".