51032404405 has 8 divisors (see below), whose sum is σ = 61281628632. Its totient is φ = 40797427968.

The previous prime is 51032404271. The next prime is 51032404421. The reversal of 51032404405 is 50440423015.

It can be written as a sum of positive squares in 4 ways, for example, as 26070300369 + 24962104036 = 161463^2 + 157994^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51032404405 - 2²⁵ = 50998849973 is a prime.

It is a Duffinian number.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 3554064 + ... + 3568393.

It is an arithmetic number, because the mean of its divisors is an integer number (7660203579).

Almost surely, 2^51032404405 is an apocalyptic number.

It is an amenable number.

51032404405 is a deficient number, since it is larger than the sum of its proper divisors (10249224227).

51032404405 is a wasteful number, since it uses less digits than its factorization.

51032404405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7123895.

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 51032404405 in words is "fifty-one billion, thirty-two million, four hundred four thousand, four hundred five".