249992085 has 16 divisors (see below), whose sum is σ = 457128576. Its totient is φ = 114282048.

The previous prime is 249992081. The next prime is 249992087. The reversal of 249992085 is 580299942.

It is a happy number.

It is not a de Polignac number, because 249992085 - 2² = 249992081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249992081) 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, 1190334 + ... + 1190543.

It is an arithmetic number, because the mean of its divisors is an integer number (28570536).

Almost surely, 2^249992085 is an apocalyptic number.

It is an amenable number.

249992085 is a deficient number, since it is larger than the sum of its proper divisors (207136491).

249992085 is a wasteful number, since it uses less digits than its factorization.

249992085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380892.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 249992085 is about 15811.1380045840. The cubic root of 249992085 is about 629.9538766939.

The spelling of 249992085 in words is "two hundred forty-nine million, nine hundred ninety-two thousand, eighty-five".