625131252 has 36 divisors (see below), whose sum is σ = 1586091780. Its totient is φ = 207599232.

The previous prime is 625131209. The next prime is 625131301. The reversal of 625131252 is 252131526.

It is a happy number.

625131252 is a `hidden beast` number, since 625 + 1 + 31 + 2 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18198756 + 606932496 = 4266^2 + 24636^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22593 + ... + 41960.

It is an arithmetic number, because the mean of its divisors is an integer number (44058105).

Almost surely, 2^625131252 is an apocalyptic number.

It is an amenable number.

625131252 is an abundant number, since it is smaller than the sum of its proper divisors (960960528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625131252 is a wasteful number, since it uses less digits than its factorization.

625131252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64832 (or 64827 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 625131252 is about 25002.6249021978. The cubic root of 625131252 is about 855.0478192194.

Adding to 625131252 its reverse (252131526), we get a palindrome (877262778).

The spelling of 625131252 in words is "six hundred twenty-five million, one hundred thirty-one thousand, two hundred fifty-two".