252528501 has 4 divisors (see below), whose sum is σ = 336704672. Its totient is φ = 168352332.

The previous prime is 252528481. The next prime is 252528527. The reversal of 252528501 is 105825252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 252528501 - 2¹⁰ = 252527477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252528581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42088081 + ... + 42088086.

It is an arithmetic number, because the mean of its divisors is an integer number (84176168).

Almost surely, 2^252528501 is an apocalyptic number.

It is an amenable number.

252528501 is a deficient number, since it is larger than the sum of its proper divisors (84176171).

252528501 is an equidigital number, since it uses as much as digits as its factorization.

252528501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84176170.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 252528501 is about 15891.1453646362. The cubic root of 252528501 is about 632.0772125995.

The spelling of 252528501 in words is "two hundred fifty-two million, five hundred twenty-eight thousand, five hundred one".