249475299 has 16 divisors (see below), whose sum is σ = 338978304. Its totient is φ = 163159200.

The previous prime is 249475267. The next prime is 249475309. The reversal of 249475299 is 992574942.

It is not a de Polignac number, because 249475299 - 2⁵ = 249475267 is a prime.

It is a super-2 number, since 2×249475299² = 124475849622278802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249475199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77292 + ... + 80454.

It is an arithmetic number, because the mean of its divisors is an integer number (21186144).

Almost surely, 2^249475299 is an apocalyptic number.

249475299 is a deficient number, since it is larger than the sum of its proper divisors (89503005).

249475299 is a wasteful number, since it uses less digits than its factorization.

249475299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658.

The product of its digits is 1632960, while the sum is 51.

The square root of 249475299 is about 15794.7870830854. The cubic root of 249475299 is about 629.5194950351.

The spelling of 249475299 in words is "two hundred forty-nine million, four hundred seventy-five thousand, two hundred ninety-nine".