51150511055 has 32 divisors (see below), whose sum is σ = 70599651840. Its totient is φ = 34849779840.

The previous prime is 51150511051. The next prime is 51150511063. The reversal of 51150511055 is 55011505115.

It is a happy number.

It is not a de Polignac number, because 51150511055 - 2² = 51150511051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51150511051) 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, 9839717 + ... + 9844913.

It is an arithmetic number, because the mean of its divisors is an integer number (2206239120).

Almost surely, 2^51150511055 is an apocalyptic number.

51150511055 is a deficient number, since it is larger than the sum of its proper divisors (19449140785).

51150511055 is a wasteful number, since it uses less digits than its factorization.

51150511055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6959.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 51150511055 in words is "fifty-one billion, one hundred fifty million, five hundred eleven thousand, fifty-five".