725527225 has 6 divisors (see below), whose sum is σ = 899653790. Its totient is φ = 580421760.

The previous prime is 725527223. The next prime is 725527277. The reversal of 725527225 is 522725527.

It can be written as a sum of positive squares in 3 ways, for example, as 142014889 + 583512336 = 11917^2 + 24156^2 .

It is not a de Polignac number, because 725527225 - 2¹ = 725527223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725527223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14510520 + ... + 14510569.

Almost surely, 2^725527225 is an apocalyptic number.

It is an amenable number.

725527225 is a deficient number, since it is larger than the sum of its proper divisors (174126565).

725527225 is a wasteful number, since it uses less digits than its factorization.

725527225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29021099 (or 29021094 counting only the distinct ones).

The product of its digits is 98000, while the sum is 37.

The square root of 725527225 is about 26935.6125788889. The cubic root of 725527225 is about 898.5685991276.

The spelling of 725527225 in words is "seven hundred twenty-five million, five hundred twenty-seven thousand, two hundred twenty-five".