250055440 has 80 divisors (see below), whose sum is σ = 593712000. Its totient is φ = 97929216.

The previous prime is 250055383. The next prime is 250055453. The reversal of 250055440 is 44550052.

250055440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256461 + ... + 1256659.

It is an arithmetic number, because the mean of its divisors is an integer number (7421400).

Almost surely, 2^250055440 is an apocalyptic number.

250055440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250055440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296856000).

250055440 is an abundant number, since it is smaller than the sum of its proper divisors (343656560).

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

250055440 is a wasteful number, since it uses less digits than its factorization.

250055440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 250055440 is about 15813.1413703919. The cubic root of 250055440 is about 630.0070881877.

The spelling of 250055440 in words is "two hundred fifty million, fifty-five thousand, four hundred forty".