249080513 has 4 divisors (see below), whose sum is σ = 271724208. Its totient is φ = 226436820.

The previous prime is 249080483. The next prime is 249080527. The reversal of 249080513 is 315080942.

249080513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 249080513 - 2¹² = 249076417 is a prime.

It is a super-2 number, since 2×249080513² = 124082203912686338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249080513.

It is not an unprimeable number, because it can be changed into a prime (249080543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11321831 + ... + 11321852.

It is an arithmetic number, because the mean of its divisors is an integer number (67931052).

Almost surely, 2^249080513 is an apocalyptic number.

It is an amenable number.

249080513 is a deficient number, since it is larger than the sum of its proper divisors (22643695).

249080513 is a wasteful number, since it uses less digits than its factorization.

249080513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22643694.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 249080513 is about 15782.2847838962. The cubic root of 249080513 is about 629.1872554719.

The spelling of 249080513 in words is "two hundred forty-nine million, eighty thousand, five hundred thirteen".