57442225 has 48 divisors (see below), whose sum is σ = 79994880. Its totient is φ = 40737600.

The previous prime is 57442219. The next prime is 57442261. The reversal of 57442225 is 52224475.

It is not a de Polignac number, because 57442225 - 2⁵ = 57442193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 692034 + ... + 692116.

It is an arithmetic number, because the mean of its divisors is an integer number (1666560).

Almost surely, 2^57442225 is an apocalyptic number.

It is an amenable number.

57442225 is a deficient number, since it is larger than the sum of its proper divisors (22552655).

57442225 is a wasteful number, since it uses less digits than its factorization.

57442225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 185 counting only the distinct ones).

The product of its digits is 22400, while the sum is 31.

The square root of 57442225 is about 7579.0649159378. The cubic root of 57442225 is about 385.8428154519.

The spelling of 57442225 in words is "fifty-seven million, four hundred forty-two thousand, two hundred twenty-five".