51105000061105 has 16 divisors (see below), whose sum is σ = 62505430631424. Its totient is φ = 40103559012160.

The previous prime is 51105000061081. The next prime is 51105000061109. The reversal of 51105000061105 is 50116000050115.

It is not a de Polignac number, because 51105000061105 - 2²¹ = 51104997963953 is a prime.

It is a super-2 number, since 2×51105000061105² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51105000061105.

It is not an unprimeable number, because it can be changed into a prime (51105000061109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365305057 + ... + 365444926.

It is an arithmetic number, because the mean of its divisors is an integer number (3906589414464).

Almost surely, 2^{51105000061105} is an apocalyptic number.

It is an amenable number.

51105000061105 is a deficient number, since it is larger than the sum of its proper divisors (11400430570319).

51105000061105 is a wasteful number, since it uses less digits than its factorization.

51105000061105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730750256.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 51105000061105 in words is "fifty-one trillion, one hundred five billion, sixty-one thousand, one hundred five".