51233151232 has 18 divisors (see below), whose sum is σ = 102266173478. Its totient is φ = 25616575488.

The previous prime is 51233151191. The next prime is 51233151241. The reversal of 51233151232 is 23215133215.

It can be written as a sum of positive squares in only one way, i.e., 39242025216 + 11991126016 = 198096^2 + 109504^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51233151232.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100064493 + ... + 100065004.

Almost surely, 2^51233151232 is an apocalyptic number.

It is an amenable number.

51233151232 is a deficient number, since it is larger than the sum of its proper divisors (51033022246).

51233151232 is an equidigital number, since it uses as much as digits as its factorization.

51233151232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200129513 (or 200129499 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

Adding to 51233151232 its reverse (23215133215), we get a palindrome (74448284447).

The spelling of 51233151232 in words is "fifty-one billion, two hundred thirty-three million, one hundred fifty-one thousand, two hundred thirty-two".