252501005 has 4 divisors (see below), whose sum is σ = 303001212. Its totient is φ = 202000800.

The previous prime is 252500981. The next prime is 252501037. The reversal of 252501005 is 500105252.

252501005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128913316 + 123587689 = 11354^2 + 11117^2 .

It is not a de Polignac number, because 252501005 - 2⁸ = 252500749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25250096 + ... + 25250105.

It is an arithmetic number, because the mean of its divisors is an integer number (75750303).

Almost surely, 2^252501005 is an apocalyptic number.

It is an amenable number.

252501005 is a deficient number, since it is larger than the sum of its proper divisors (50500207).

252501005 is an equidigital number, since it uses as much as digits as its factorization.

252501005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50500206.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 252501005 is about 15890.2802052072. The cubic root of 252501005 is about 632.0542709965.

Adding to 252501005 its reverse (500105252), we get a palindrome (752606257).

The spelling of 252501005 in words is "two hundred fifty-two million, five hundred one thousand, five".