252000005 has 4 divisors (see below), whose sum is σ = 302400012. Its totient is φ = 201600000.

The previous prime is 251999999. The next prime is 252000011. The reversal of 252000005 is 500000252.

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

It is an interprime number because it is at equal distance from previous prime (251999999) and next prime (252000011).

It can be written as a sum of positive squares in 2 ways, for example, as 92659876 + 159340129 = 9626^2 + 12623^2 .

It is not a de Polignac number, because 252000005 - 2⁴ = 251999989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 25199996 + ... + 25200005.

It is an arithmetic number, because the mean of its divisors is an integer number (75600003).

Almost surely, 2^252000005 is an apocalyptic number.

It is an amenable number.

252000005 is a deficient number, since it is larger than the sum of its proper divisors (50400007).

252000005 is an equidigital number, since it uses as much as digits as its factorization.

252000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50400006.

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 252000005 is about 15874.5080238727. The cubic root of 252000005 is about 631.6359639431.

Adding to 252000005 its reverse (500000252), we get a palindrome (752000257).

The spelling of 252000005 in words is "two hundred fifty-two million, five", and thus it is an aban number.