252503005 has 8 divisors (see below), whose sum is σ = 304039512. Its totient is φ = 201311808.

The previous prime is 252503003. The next prime is 252503021. The reversal of 252503005 is 500305252.

It can be written as a sum of positive squares in 4 ways, for example, as 158684409 + 93818596 = 12597^2 + 9686^2 .

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 252503005 - 2¹ = 252503003 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 (252503003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84714 + ... + 87643.

It is an arithmetic number, because the mean of its divisors is an integer number (38004939).

Almost surely, 2^252503005 is an apocalyptic number.

It is an amenable number.

252503005 is a deficient number, since it is larger than the sum of its proper divisors (51536507).

252503005 is a wasteful number, since it uses less digits than its factorization.

252503005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172655.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 252503005 is about 15890.3431366349. The cubic root of 252503005 is about 632.0559397756.

Adding to 252503005 its reverse (500305252), we get a palindrome (752808257).

The spelling of 252503005 in words is "two hundred fifty-two million, five hundred three thousand, five".