251116060 has 48 divisors (see below), whose sum is σ = 573483456. Its totient is φ = 91809792.

The previous prime is 251116043. The next prime is 251116091. The reversal of 251116060 is 60611152.

It is a congruent 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, 22092 + ... + 31468.

It is an arithmetic number, because the mean of its divisors is an integer number (11947572).

Almost surely, 2^251116060 is an apocalyptic number.

251116060 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 251116060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286741728).

251116060 is an abundant number, since it is smaller than the sum of its proper divisors (322367396).

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

251116060 is a wasteful number, since it uses less digits than its factorization.

251116060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9502 (or 9500 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 251116060 is about 15846.6419155605. The cubic root of 251116060 is about 630.8965650816.

The spelling of 251116060 in words is "two hundred fifty-one million, one hundred sixteen thousand, sixty".