252500000 has 96 divisors (see below), whose sum is σ = 627537456. Its totient is φ = 100000000.

The previous prime is 252499981. The next prime is 252500023. The reversal of 252500000 is 5252.

It can be written as a sum of positive squares in 8 ways, for example, as 176252176 + 76247824 = 13276^2 + 8732^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2499950 + ... + 2500050.

Almost surely, 2^252500000 is an apocalyptic number.

252500000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313768728).

252500000 is an abundant number, since it is smaller than the sum of its proper divisors (375037456).

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

252500000 is an frugal number, since it uses more digits than its factorization.

252500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 108 counting only the distinct ones).

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

The square root of 252500000 is about 15890.2485820707. The cubic root of 252500000 is about 632.0534324316.

Adding to 252500000 its reverse (5252), we get a palindrome (252505252).

The spelling of 252500000 in words is "two hundred fifty-two million, five hundred thousand".