51242432132 has 6 divisors (see below), whose sum is σ = 89674256238. Its totient is φ = 25621216064.

The previous prime is 51242432117. The next prime is 51242432161. The reversal of 51242432132 is 23123424215.

It can be written as a sum of positive squares in only one way, i.e., 27038540356 + 24203891776 = 164434^2 + 155576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51242432095 and 51242432104.

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 as a sum of consecutive naturals, namely, 6405304013 + ... + 6405304020.

It is an arithmetic number, because the mean of its divisors is an integer number (14945709373).

Almost surely, 2^51242432132 is an apocalyptic number.

It is an amenable number.

51242432132 is a deficient number, since it is larger than the sum of its proper divisors (38431824106).

51242432132 is a wasteful number, since it uses less digits than its factorization.

51242432132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12810608037 (or 12810608035 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

Adding to 51242432132 its reverse (23123424215), we get a palindrome (74365856347).

The spelling of 51242432132 in words is "fifty-one billion, two hundred forty-two million, four hundred thirty-two thousand, one hundred thirty-two".