252451312 has 20 divisors (see below), whose sum is σ = 510391440. Its totient is φ = 120737408.

The previous prime is 252451307. The next prime is 252451337. The reversal of 252451312 is 213154252.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342637 + ... + 343372.

It is an arithmetic number, because the mean of its divisors is an integer number (25519572).

Almost surely, 2^252451312 is an apocalyptic number.

It is an amenable number.

252451312 is an abundant number, since it is smaller than the sum of its proper divisors (257940128).

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

252451312 is a wasteful number, since it uses less digits than its factorization.

252451312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686040 (or 686034 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 252451312 is about 15888.7164994533. The cubic root of 252451312 is about 632.0128048466.

The spelling of 252451312 in words is "two hundred fifty-two million, four hundred fifty-one thousand, three hundred twelve".