251368848 has 60 divisors (see below), whose sum is σ = 707134428. Its totient is φ = 83354880.

The previous prime is 251368847. The next prime is 251368849. The reversal of 251368848 is 848863152.

It is an interprime number because it is at equal distance from previous prime (251368847) and next prime (251368849).

It can be written as a sum of positive squares in 2 ways, for example, as 247495824 + 3873024 = 15732^2 + 1968^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (251368847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23938 + ... + 32798.

Almost surely, 2^251368848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 251368848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353567214).

251368848 is an abundant number, since it is smaller than the sum of its proper divisors (455765580).

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

251368848 is a wasteful number, since it uses less digits than its factorization.

251368848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9072 (or 9063 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 251368848 is about 15854.6159839966. The cubic root of 251368848 is about 631.1081931176.

The spelling of 251368848 in words is "two hundred fifty-one million, three hundred sixty-eight thousand, eight hundred forty-eight".