57219225 has 48 divisors (see below), whose sum is σ = 109671552. Its totient is φ = 25781760.

The previous prime is 57219181. The next prime is 57219247. The reversal of 57219225 is 52291275.

It is a happy number.

It is not a de Polignac number, because 57219225 - 2⁸ = 57218969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37579 + ... + 39071.

It is an arithmetic number, because the mean of its divisors is an integer number (2284824).

Almost surely, 2^57219225 is an apocalyptic number.

It is an amenable number.

57219225 is a deficient number, since it is larger than the sum of its proper divisors (52452327).

57219225 is a wasteful number, since it uses less digits than its factorization.

57219225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586 (or 1581 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 57219225 is about 7564.3390325923. The cubic root of 57219225 is about 385.3428665448.

The spelling of 57219225 in words is "fifty-seven million, two hundred nineteen thousand, two hundred twenty-five".