57645225 has 36 divisors (see below), whose sum is σ = 112640112. Its totient is φ = 27948000.

The previous prime is 57645209. The next prime is 57645233. The reversal of 57645225 is 52254675.

57645225 is a `hidden beast` number, since 5 + 7 + 645 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 57645225 - 2⁴ = 57645209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57645225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9171 + ... + 14120.

It is an arithmetic number, because the mean of its divisors is an integer number (3128892).

Almost surely, 2^57645225 is an apocalyptic number.

57645225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57645225 is a deficient number, since it is larger than the sum of its proper divisors (54994887).

57645225 is a wasteful number, since it uses less digits than its factorization.

57645225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23318 (or 23310 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 57645225 is about 7592.4452582814. The cubic root of 57645225 is about 386.2968020706.

The spelling of 57645225 in words is "fifty-seven million, six hundred forty-five thousand, two hundred twenty-five".