252531012 has 12 divisors (see below), whose sum is σ = 589239056. Its totient is φ = 84177000.

The previous prime is 252530987. The next prime is 252531023. The reversal of 252531012 is 210135252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 252531012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10522114 + ... + 10522137.

Almost surely, 2^252531012 is an apocalyptic number.

It is an amenable number.

252531012 is an abundant number, since it is smaller than the sum of its proper divisors (336708044).

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

252531012 is a wasteful number, since it uses less digits than its factorization.

252531012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21044258 (or 21044256 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 252531012 is about 15891.2243707022. The cubic root of 252531012 is about 632.0793075981.

Adding to 252531012 its reverse (210135252), we get a palindrome (462666264).

The spelling of 252531012 in words is "two hundred fifty-two million, five hundred thirty-one thousand, twelve".