249915325 has 24 divisors (see below), whose sum is σ = 340022880. Its totient is φ = 180705600.

The previous prime is 249915271. The next prime is 249915331. The reversal of 249915325 is 523519942.

It is not a de Polignac number, because 249915325 - 2⁹ = 249914813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46687 + ... + 51763.

It is an arithmetic number, because the mean of its divisors is an integer number (14167620).

Almost surely, 2^249915325 is an apocalyptic number.

249915325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

249915325 is a deficient number, since it is larger than the sum of its proper divisors (90107555).

249915325 is a wasteful number, since it uses less digits than its factorization.

249915325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277 (or 5272 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 249915325 is about 15808.7104154640. The cubic root of 249915325 is about 629.8893943729.

The spelling of 249915325 in words is "two hundred forty-nine million, nine hundred fifteen thousand, three hundred twenty-five".