250006433220 has 144 divisors (see below), whose sum is σ = 766549366128. Its totient is φ = 65949004800.

The previous prime is 250006433219. The next prime is 250006433263. The reversal of 250006433220 is 22334600052.

250006433220 is a `hidden beast` number, since 2 + 5 + 0 + 0 + 0 + 6 + 433 + 220 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 4315701636 + 245690731584 = 65694^2 + 495672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22483102 + ... + 22494218.

It is an arithmetic number, because the mean of its divisors is an integer number (5323259487).

Almost surely, 2^250006433220 is an apocalyptic number.

250006433220 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 250006433220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383274683064).

250006433220 is an abundant number, since it is smaller than the sum of its proper divisors (516542932908).

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

250006433220 is a wasteful number, since it uses less digits than its factorization.

250006433220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12470 (or 12465 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The spelling of 250006433220 in words is "two hundred fifty billion, six million, four hundred thirty-three thousand, two hundred twenty".