51105055 has 8 divisors (see below), whose sum is σ = 61590672. Its totient is φ = 40707648.

The previous prime is 51105053. The next prime is 51105059. The reversal of 51105055 is 55050115.

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 51105055 - 2¹ = 51105053 is a prime.

It is a super-2 number, since 2×51105055² = 5223453293106050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51105053) 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, 20769 + ... + 23098.

It is an arithmetic number, because the mean of its divisors is an integer number (7698834).

Almost surely, 2^51105055 is an apocalyptic number.

51105055 is a deficient number, since it is larger than the sum of its proper divisors (10485617).

51105055 is a wasteful number, since it uses less digits than its factorization.

51105055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44105.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 51105055 is about 7148.7799658403. The cubic root of 51105055 is about 371.0974356783.

The spelling of 51105055 in words is "fifty-one million, one hundred five thousand, fifty-five".