51539304005 has 32 divisors (see below), whose sum is σ = 74858411520. Its totient is φ = 33254277120.

The previous prime is 51539304001. The next prime is 51539304013. The reversal of 51539304005 is 50040393515.

It is not a de Polignac number, because 51539304005 - 2² = 51539304001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51539304001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3347525 + ... + 3362885.

It is an arithmetic number, because the mean of its divisors is an integer number (2339325360).

Almost surely, 2^51539304005 is an apocalyptic number.

It is an amenable number.

51539304005 is a deficient number, since it is larger than the sum of its proper divisors (23319107515).

51539304005 is a wasteful number, since it uses less digits than its factorization.

51539304005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21029.

The product of its (nonzero) digits is 40500, while the sum is 35.

The spelling of 51539304005 in words is "fifty-one billion, five hundred thirty-nine million, three hundred four thousand, five".