57055225 has 12 divisors (see below), whose sum is σ = 70844796. Its totient is φ = 45582080.

The previous prime is 57055223. The next prime is 57055237. The reversal of 57055225 is 52255075.

It can be written as a sum of positive squares in 6 ways, for example, as 309136 + 56746089 = 556^2 + 7533^2 .

It is not a de Polignac number, because 57055225 - 2¹ = 57055223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57055223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28869 + ... + 30781.

It is an arithmetic number, because the mean of its divisors is an integer number (5903733).

Almost surely, 2^57055225 is an apocalyptic number.

It is an amenable number.

57055225 is a deficient number, since it is larger than the sum of its proper divisors (13789571).

57055225 is a wasteful number, since it uses less digits than its factorization.

57055225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3111 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 57055225 is about 7553.4909148022. The cubic root of 57055225 is about 384.9743615917.

The spelling of 57055225 in words is "fifty-seven million, fifty-five thousand, two hundred twenty-five".