51125627432432 has 80 divisors (see below), whose sum is σ = 115841876240640. Its totient is φ = 21400979314176.

The previous prime is 51125627432419. The next prime is 51125627432447. The reversal of 51125627432432 is 23423472652115.

It is a happy number.

It is a super-2 number, since 2×51125627432432² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338551919 + ... + 338702897.

It is an arithmetic number, because the mean of its divisors is an integer number (1448023453008).

Almost surely, 2^{51125627432432} is an apocalyptic number.

It is an amenable number.

51125627432432 is an abundant number, since it is smaller than the sum of its proper divisors (64716248808208).

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

51125627432432 is a wasteful number, since it uses less digits than its factorization.

51125627432432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221350 (or 221344 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 47.

The spelling of 51125627432432 in words is "fifty-one trillion, one hundred twenty-five billion, six hundred twenty-seven million, four hundred thirty-two thousand, four hundred thirty-two".