57202225 has 6 divisors (see below), whose sum is σ = 70930790. Its totient is φ = 45761760.

The previous prime is 57202213. The next prime is 57202231. The reversal of 57202225 is 52220275.

57202225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 531441 + 56670784 = 729^2 + 7528^2 .

It is not a de Polignac number, because 57202225 - 2¹⁷ = 57071153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2288089 = 57202225 / (5 + 7 + 2 + 0 + 2 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 57202225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1144020 + ... + 1144069.

Almost surely, 2^57202225 is an apocalyptic number.

It is an amenable number.

57202225 is a deficient number, since it is larger than the sum of its proper divisors (13728565).

57202225 is a wasteful number, since it uses less digits than its factorization.

57202225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288099 (or 2288094 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 57202225 is about 7563.2152554320. The cubic root of 57202225 is about 385.3047005986.

The spelling of 57202225 in words is "fifty-seven million, two hundred two thousand, two hundred twenty-five".