250116520 has 32 divisors (see below), whose sum is σ = 564709320. Its totient is φ = 99700480.

The previous prime is 250116499. The next prime is 250116527. The reversal of 250116520 is 25611052.

It can be written as a sum of positive squares in 4 ways, for example, as 242923396 + 7193124 = 15586^2 + 2682^2 .

It is a junction number, because it is equal to n+sod(n) for n = 250116491 and 250116500.

It is not an unprimeable number, because it can be changed into a prime (250116527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050 + ... + 22390.

Almost surely, 2^250116520 is an apocalyptic number.

250116520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250116520 is an abundant number, since it is smaller than the sum of its proper divisors (314592800).

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

250116520 is a wasteful number, since it uses less digits than its factorization.

250116520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21645 (or 21641 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 250116520 is about 15815.0725575319. The cubic root of 250116520 is about 630.0583804133.

Adding to 250116520 its reverse (25611052), we get a palindrome (275727572).

The spelling of 250116520 in words is "two hundred fifty million, one hundred sixteen thousand, five hundred twenty".