57472291 has 4 divisors (see below), whose sum is σ = 60853032. Its totient is φ = 54091552.

The previous prime is 57472279. The next prime is 57472297. The reversal of 57472291 is 19227475.

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

It is a de Polignac number, because none of the positive numbers 2^k-57472291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57472291.

It is not an unprimeable number, because it can be changed into a prime (57472297) 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, 1690345 + ... + 1690378.

It is an arithmetic number, because the mean of its divisors is an integer number (15213258).

Almost surely, 2^57472291 is an apocalyptic number.

57472291 is a deficient number, since it is larger than the sum of its proper divisors (3380741).

57472291 is a wasteful number, since it uses less digits than its factorization.

57472291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380740.

The product of its digits is 35280, while the sum is 37.

The square root of 57472291 is about 7581.0481465296. The cubic root of 57472291 is about 385.9101220757.

The spelling of 57472291 in words is "fifty-seven million, four hundred seventy-two thousand, two hundred ninety-one".