250145220 has 48 divisors (see below), whose sum is σ = 754286400. Its totient is φ = 61574016.

The previous prime is 250145219. The next prime is 250145239. The reversal of 250145220 is 22541052.

It is a happy number.

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, 159570 + ... + 161129.

It is an arithmetic number, because the mean of its divisors is an integer number (15714300).

Almost surely, 2^250145220 is an apocalyptic number.

250145220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250145220 is an abundant number, since it is smaller than the sum of its proper divisors (504141180).

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

250145220 is a wasteful number, since it uses less digits than its factorization.

250145220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320724 (or 320722 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 250145220 is about 15815.9798937657. The cubic root of 250145220 is about 630.0824784936.

Adding to 250145220 its reverse (22541052), we get a palindrome (272686272).

The spelling of 250145220 in words is "two hundred fifty million, one hundred forty-five thousand, two hundred twenty".