250151220 has 192 divisors, whose sum is σ = 886394880. Its totient is φ = 57974400.

The previous prime is 250151219. The next prime is 250151257. The reversal of 250151220 is 22151052.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 250151193 and 250151202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135705 + ... + 137535.

It is an arithmetic number, because the mean of its divisors is an integer number (4616640).

Almost surely, 2^250151220 is an apocalyptic number.

250151220 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 250151220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443197440).

250151220 is an abundant number, since it is smaller than the sum of its proper divisors (636243660).

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

250151220 is a wasteful number, since it uses less digits than its factorization.

250151220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 250151220 is about 15816.1695742047. The cubic root of 250151220 is about 630.0875161868.

The spelling of 250151220 in words is "two hundred fifty million, one hundred fifty-one thousand, two hundred twenty".