51051000505105 has 8 divisors (see below), whose sum is σ = 61578616154472. Its totient is φ = 40629190038528.

The previous prime is 51051000505079. The next prime is 51051000505111. The reversal of 51051000505105 is 50150500015015.

It can be written as a sum of positive squares in 4 ways, for example, as 26951460561 + 51024049044544 = 164169^2 + 7143112^2 .

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 51051000505105 - 2¹¹ = 51051000503057 is a prime.

It is a super-2 number, since 2×51051000505105² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26451294634 + ... + 26451296563.

It is an arithmetic number, because the mean of its divisors is an integer number (7697327019309).

Almost surely, 2^{51051000505105} is an apocalyptic number.

It is an amenable number.

51051000505105 is a deficient number, since it is larger than the sum of its proper divisors (10527615649367).

51051000505105 is a wasteful number, since it uses less digits than its factorization.

51051000505105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52902591395.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 51051000505105 in words is "fifty-one trillion, fifty-one billion, five hundred five thousand, one hundred five".