250681992 has 48 divisors (see below), whose sum is σ = 688865520. Its totient is φ = 75963360.

The previous prime is 250681967. The next prime is 250681999. The reversal of 250681992 is 299186052.

It is a super-2 number, since 2×250681992² = 125682922226176128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (250681999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40258 + ... + 46065.

It is an arithmetic number, because the mean of its divisors is an integer number (14351365).

Almost surely, 2^250681992 is an apocalyptic number.

250681992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

250681992 is an abundant number, since it is smaller than the sum of its proper divisors (438183528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250681992 is a wasteful number, since it uses less digits than its factorization.

250681992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86354 (or 86339 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 250681992 is about 15832.9400933623. The cubic root of 250681992 is about 630.5328422259.

The spelling of 250681992 in words is "two hundred fifty million, six hundred eighty-one thousand, nine hundred ninety-two".