252515500 has 24 divisors (see below), whose sum is σ = 551494944. Its totient is φ = 101006000.

The previous prime is 252515449. The next prime is 252515507. The reversal of 252515500 is 5515252.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (252515507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 252016 + ... + 253015.

It is an arithmetic number, because the mean of its divisors is an integer number (22978956).

Almost surely, 2^252515500 is an apocalyptic number.

252515500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252515500 is an abundant number, since it is smaller than the sum of its proper divisors (298979444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252515500 is a wasteful number, since it uses less digits than its factorization.

252515500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505050 (or 505038 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 252515500 is about 15890.7362950871. The cubic root of 252515500 is about 632.0663652735.

The spelling of 252515500 in words is "two hundred fifty-two million, five hundred fifteen thousand, five hundred".