57163225 has 48 divisors (see below), whose sum is σ = 85994496. Its totient is φ = 36864000.

The previous prime is 57163219. The next prime is 57163237. The reversal of 57163225 is 52236175.

It is not a de Polignac number, because 57163225 - 2³ = 57163217 is a prime.

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

It is a congruent number.

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, 222297 + ... + 222553.

It is an arithmetic number, because the mean of its divisors is an integer number (1791552).

Almost surely, 2^57163225 is an apocalyptic number.

It is an amenable number.

57163225 is a deficient number, since it is larger than the sum of its proper divisors (28831271).

57163225 is a wasteful number, since it uses less digits than its factorization.

57163225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 341 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 57163225 is about 7560.6365472756. The cubic root of 57163225 is about 385.2171148465.

The spelling of 57163225 in words is "fifty-seven million, one hundred sixty-three thousand, two hundred twenty-five".