252252521 has 8 divisors (see below), whose sum is σ = 259107744. Its totient is φ = 245488320.

The previous prime is 252252509. The next prime is 252252529. The reversal of 252252521 is 125252252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252252521 - 2¹⁰ = 252251497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252252529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17120 + ... + 28241.

It is an arithmetic number, because the mean of its divisors is an integer number (32388468).

Almost surely, 2^252252521 is an apocalyptic number.

It is an amenable number.

252252521 is a deficient number, since it is larger than the sum of its proper divisors (6855223).

252252521 is an equidigital number, since it uses as much as digits as its factorization.

252252521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45511.

The product of its digits is 4000, while the sum is 26.

The square root of 252252521 is about 15882.4595387490. The cubic root of 252252521 is about 631.8468699466.

The spelling of 252252521 in words is "two hundred fifty-two million, two hundred fifty-two thousand, five hundred twenty-one".