252455688 has 24 divisors (see below), whose sum is σ = 683734350. Its totient is φ = 84151872.

The previous prime is 252455669. The next prime is 252455689. The reversal of 252455688 is 886554252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 226261764 + 26193924 = 15042^2 + 5118^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (252455689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1753093 + ... + 1753236.

Almost surely, 2^252455688 is an apocalyptic number.

It is an amenable number.

252455688 is an abundant number, since it is smaller than the sum of its proper divisors (431278662).

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

252455688 is a wasteful number, since it uses less digits than its factorization.

252455688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506341 (or 3506334 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 252455688 is about 15888.8542066444. The cubic root of 252455688 is about 632.0164566029.

The spelling of 252455688 in words is "two hundred fifty-two million, four hundred fifty-five thousand, six hundred eighty-eight".