249995225984 has 32 divisors (see below), whose sum is σ = 569185561200. Its totient is φ = 107140810752.

The previous prime is 249995225969. The next prime is 249995226007. The reversal of 249995225984 is 489522599942.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×249995225984² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139505369 + ... + 139507160.

Almost surely, 2^249995225984 is an apocalyptic number.

It is an amenable number.

249995225984 is an abundant number, since it is smaller than the sum of its proper divisors (319190335216).

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

249995225984 is an equidigital number, since it uses as much as digits as its factorization.

249995225984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279012550 (or 279012538 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 68.

The spelling of 249995225984 in words is "two hundred forty-nine billion, nine hundred ninety-five million, two hundred twenty-five thousand, nine hundred eighty-four".