251230732532 has 48 divisors (see below), whose sum is σ = 496509775440. Its totient is φ = 110420610048.

The previous prime is 251230732517. The next prime is 251230732541. The reversal of 251230732532 is 235237032152.

251230732532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 586317796 + 250644414736 = 24214^2 + 500644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 251230732492 and 251230732501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031003 + ... + 1251170.

It is an arithmetic number, because the mean of its divisors is an integer number (10343953655).

Almost surely, 2^251230732532 is an apocalyptic number.

It is an amenable number.

251230732532 is a deficient number, since it is larger than the sum of its proper divisors (245279042908).

251230732532 is a wasteful number, since it uses less digits than its factorization.

251230732532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282292 (or 2282290 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 35.

Adding to 251230732532 its reverse (235237032152), we get a palindrome (486467764684).

The spelling of 251230732532 in words is "two hundred fifty-one billion, two hundred thirty million, seven hundred thirty-two thousand, five hundred thirty-two".