51033431204 has 18 divisors (see below), whose sum is σ = 103889485350. Its totient is φ = 21871470432.

The previous prime is 51033431179. The next prime is 51033431213. The reversal of 51033431204 is 40213433015.

51033431204 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 only one way, i.e., 51007319104 + 26112100 = 225848^2 + 5110^2 .

It is a super-2 number, since 2×51033431204² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130187129 + ... + 130187520.

It is an arithmetic number, because the mean of its divisors is an integer number (5771638075).

Almost surely, 2^51033431204 is an apocalyptic number.

It is an amenable number.

51033431204 is an abundant number, since it is smaller than the sum of its proper divisors (52856054146).

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

51033431204 is a wasteful number, since it uses less digits than its factorization.

51033431204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260374667 (or 260374658 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 51033431204 its reverse (40213433015), we get a palindrome (91246864219).

The spelling of 51033431204 in words is "fifty-one billion, thirty-three million, four hundred thirty-one thousand, two hundred four".