51115050311 has 6 divisors (see below), whose sum is σ = 55349433360. Its totient is φ = 47183123208.

The previous prime is 51115050299. The next prime is 51115050319. The reversal of 51115050311 is 11305051115.

It is not a de Polignac number, because 51115050311 - 2¹⁴ = 51115033927 is a prime.

It is a super-2 number, since 2×51115050311² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51115050319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151227791 + ... + 151228128.

It is an arithmetic number, because the mean of its divisors is an integer number (9224905560).

Almost surely, 2^51115050311 is an apocalyptic number.

51115050311 is a deficient number, since it is larger than the sum of its proper divisors (4234383049).

51115050311 is a wasteful number, since it uses less digits than its factorization.

51115050311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302455945 (or 302455932 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 23.

The spelling of 51115050311 in words is "fifty-one billion, one hundred fifteen million, fifty thousand, three hundred eleven".