251063232 has 112 divisors (see below), whose sum is σ = 762731520. Its totient is φ = 71396352.

The previous prime is 251063209. The next prime is 251063243. The reversal of 251063232 is 232360152.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492994 + ... + 493502.

Almost surely, 2^251063232 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 251063232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381365760).

251063232 is an abundant number, since it is smaller than the sum of its proper divisors (511668288).

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

251063232 is a wasteful number, since it uses less digits than its factorization.

251063232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 251063232 is about 15844.9749763135. The cubic root of 251063232 is about 630.8523208104.

The spelling of 251063232 in words is "two hundred fifty-one million, sixty-three thousand, two hundred thirty-two".