51504332105 has 8 divisors (see below), whose sum is σ = 61806889032. Its totient is φ = 41202338688.

The previous prime is 51504332071. The next prime is 51504332107. The reversal of 51504332105 is 50123340515.

It can be written as a sum of positive squares in 4 ways, for example, as 648669961 + 50855662144 = 25469^2 + 225512^2 .

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 51504332105 - 2¹² = 51504328009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51504332107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96599 + ... + 335171.

It is an arithmetic number, because the mean of its divisors is an integer number (7725861129).

Almost surely, 2^51504332105 is an apocalyptic number.

It is an amenable number.

51504332105 is a deficient number, since it is larger than the sum of its proper divisors (10302556927).

51504332105 is a wasteful number, since it uses less digits than its factorization.

51504332105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281755.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 51504332105 in words is "fifty-one billion, five hundred four million, three hundred thirty-two thousand, one hundred five".