252551442 has 48 divisors (see below), whose sum is σ = 597925440. Its totient is φ = 70641120.

The previous prime is 252551423. The next prime is 252551443. The reversal of 252551442 is 244155252.

It is not an unprimeable number, because it can be changed into a prime (252551443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3942 + ... + 22817.

It is an arithmetic number, because the mean of its divisors is an integer number (12456780).

Almost surely, 2^252551442 is an apocalyptic number.

252551442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

252551442 is an abundant number, since it is smaller than the sum of its proper divisors (345373998).

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

252551442 is a wasteful number, since it uses less digits than its factorization.

252551442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26799 (or 26788 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 252551442 is about 15891.8671653145. The cubic root of 252551442 is about 632.0963524117.

The spelling of 252551442 in words is "two hundred fifty-two million, five hundred fifty-one thousand, four hundred forty-two".