57487225 has 6 divisors (see below), whose sum is σ = 71284190. Its totient is φ = 45989760.

The previous prime is 57487223. The next prime is 57487231. The reversal of 57487225 is 52278475.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4372281 + 53114944 = 2091^2 + 7288^2 .

It is not a de Polignac number, because 57487225 - 2¹ = 57487223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57487223) 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 5 ways as a sum of consecutive naturals, for example, 1149720 + ... + 1149769.

Almost surely, 2^57487225 is an apocalyptic number.

It is an amenable number.

57487225 is a deficient number, since it is larger than the sum of its proper divisors (13796965).

57487225 is a wasteful number, since it uses less digits than its factorization.

57487225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299499 (or 2299494 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 57487225 is about 7582.0330387041. The cubic root of 57487225 is about 385.9435450380.

The spelling of 57487225 in words is "fifty-seven million, four hundred eighty-seven thousand, two hundred twenty-five".