51032404404 has 30 divisors (see below), whose sum is σ = 133408786434. Its totient is φ = 17010801360.

The previous prime is 51032404271. The next prime is 51032404421. The reversal of 51032404404 is 40440423015.

It is a happy number.

51032404404 is a `hidden beast` number, since 5 + 10 + 3 + 240 + 4 + 404 = 666.

51032404404 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., 50941392804 + 91011600 = 225702^2 + 9540^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78753387 + ... + 78754034.

Almost surely, 2^51032404404 is an apocalyptic number.

51032404404 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

51032404404 is an abundant number, since it is smaller than the sum of its proper divisors (82376382030).

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

51032404404 is a wasteful number, since it uses less digits than its factorization.

51032404404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157507437 (or 157507426 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 51032404404 its reverse (40440423015), we get a palindrome (91472827419).

The spelling of 51032404404 in words is "fifty-one billion, thirty-two million, four hundred four thousand, four hundred four".