249889701 has 4 divisors (see below), whose sum is σ = 333186272. Its totient is φ = 166593132.

The previous prime is 249889663. The next prime is 249889771. The reversal of 249889701 is 107988942.

249889701 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 not a de Polignac number, because 249889701 - 2⁶ = 249889637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249889771) 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, 41648281 + ... + 41648286.

It is an arithmetic number, because the mean of its divisors is an integer number (83296568).

Almost surely, 2^249889701 is an apocalyptic number.

It is an amenable number.

249889701 is a deficient number, since it is larger than the sum of its proper divisors (83296571).

249889701 is an equidigital number, since it uses as much as digits as its factorization.

249889701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83296570.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 249889701 is about 15807.8999554020. The cubic root of 249889701 is about 629.8678659646.

The spelling of 249889701 in words is "two hundred forty-nine million, eight hundred eighty-nine thousand, seven hundred one".