249875523 has 10 divisors (see below), whose sum is σ = 373270964. Its totient is φ = 166583628.

The previous prime is 249875501. The next prime is 249875551. The reversal of 249875523 is 325578942.

249875523 is a `hidden beast` number, since 2 + 4 + 98 + 7 + 552 + 3 = 666.

249875523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 249875523 - 2⁹ = 249875011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249875573) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1542361 + ... + 1542522.

Almost surely, 2^249875523 is an apocalyptic number.

249875523 is a deficient number, since it is larger than the sum of its proper divisors (123395441).

249875523 is an equidigital number, since it uses as much as digits as its factorization.

249875523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084895 (or 3084886 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 249875523 is about 15807.4515023770. The cubic root of 249875523 is about 629.8559534615.

The spelling of 249875523 in words is "two hundred forty-nine million, eight hundred seventy-five thousand, five hundred twenty-three".