249925395 has 16 divisors (see below), whose sum is σ = 400897440. Its totient is φ = 132954624.

The previous prime is 249925363. The next prime is 249925397. The reversal of 249925395 is 593529942.

It is a happy number.

It is not a de Polignac number, because 249925395 - 2⁵ = 249925363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249925397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15030 + ... + 26939.

It is an arithmetic number, because the mean of its divisors is an integer number (25056090).

Almost surely, 2^249925395 is an apocalyptic number.

249925395 is a deficient number, since it is larger than the sum of its proper divisors (150972045).

249925395 is a wasteful number, since it uses less digits than its factorization.

249925395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42374.

The product of its digits is 874800, while the sum is 48.

The square root of 249925395 is about 15809.0289075579. The cubic root of 249925395 is about 629.8978544397.

The spelling of 249925395 in words is "two hundred forty-nine million, nine hundred twenty-five thousand, three hundred ninety-five".