252404525 has 24 divisors (see below), whose sum is σ = 332478720. Its totient is φ = 189423360.

The previous prime is 252404521. The next prime is 252404527. The reversal of 252404525 is 525404252.

It is not a de Polignac number, because 252404525 - 2² = 252404521 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252404521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160292 + ... + 161858.

It is an arithmetic number, because the mean of its divisors is an integer number (13853280).

Almost surely, 2^252404525 is an apocalyptic number.

252404525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252404525 is a deficient number, since it is larger than the sum of its proper divisors (80074195).

252404525 is a wasteful number, since it uses less digits than its factorization.

252404525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 252404525 is about 15887.2440970736. The cubic root of 252404525 is about 631.9737586244.

Adding to 252404525 its reverse (525404252), we get a palindrome (777808777).

The spelling of 252404525 in words is "two hundred fifty-two million, four hundred four thousand, five hundred twenty-five".