251126432 has 48 divisors (see below), whose sum is σ = 506544192. Its totient is φ = 122519040.

The previous prime is 251126429. The next prime is 251126441. The reversal of 251126432 is 234621152.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242588 + ... + 243620.

It is an arithmetic number, because the mean of its divisors is an integer number (10553004).

Almost surely, 2^251126432 is an apocalyptic number.

It is an amenable number.

251126432 is an abundant number, since it is smaller than the sum of its proper divisors (255417760).

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

251126432 is a wasteful number, since it uses less digits than its factorization.

251126432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1213 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 251126432 is about 15846.9691739462. The cubic root of 251126432 is about 630.9052510640.

Adding to 251126432 its reverse (234621152), we get a palindrome (485747584).

The spelling of 251126432 in words is "two hundred fifty-one million, one hundred twenty-six thousand, four hundred thirty-two".