57225144 has 16 divisors (see below), whose sum is σ = 143062920. Its totient is φ = 19075040.

The previous prime is 57225143. The next prime is 57225167. The reversal of 57225144 is 44152275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57225143) 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, 1192167 + ... + 1192214.

Almost surely, 2^57225144 is an apocalyptic number.

It is an amenable number.

57225144 is an abundant number, since it is smaller than the sum of its proper divisors (85837776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57225144 is a wasteful number, since it uses less digits than its factorization.

57225144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384390 (or 2384386 counting only the distinct ones).

The product of its digits is 11200, while the sum is 30.

The square root of 57225144 is about 7564.7302661761. The cubic root of 57225144 is about 385.3561532550.

The spelling of 57225144 in words is "fifty-seven million, two hundred twenty-five thousand, one hundred forty-four".