252525216 has 24 divisors (see below), whose sum is σ = 662878944. Its totient is φ = 84175040.

The previous prime is 252525199. The next prime is 252525223. The reversal of 252525216 is 612525252.

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

It is an alternating number because its digits alternate between even and odd.

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, 1315140 + ... + 1315331.

It is an arithmetic number, because the mean of its divisors is an integer number (27619956).

Almost surely, 2^252525216 is an apocalyptic number.

It is an amenable number.

252525216 is an abundant number, since it is smaller than the sum of its proper divisors (410353728).

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

252525216 is a wasteful number, since it uses less digits than its factorization.

252525216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630484 (or 2630476 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 252525216 is about 15891.0420048529. The cubic root of 252525216 is about 632.0744718096.

The spelling of 252525216 in words is "two hundred fifty-two million, five hundred twenty-five thousand, two hundred sixteen".