51115295 has 32 divisors (see below), whose sum is σ = 77276160. Its totient is φ = 31530240.

The previous prime is 51115289. The next prime is 51115297. The reversal of 51115295 is 59251115.

It is not a de Polignac number, because 51115295 - 2⁶ = 51115231 is a prime.

It is a super-2 number, since 2×51115295² = 5225546765874050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51115297) 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, 39011 + ... + 40299.

It is an arithmetic number, because the mean of its divisors is an integer number (2414880).

Almost surely, 2^51115295 is an apocalyptic number.

51115295 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51115295 is a deficient number, since it is larger than the sum of its proper divisors (26160865).

51115295 is a wasteful number, since it uses less digits than its factorization.

51115295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415.

The product of its digits is 2250, while the sum is 29.

The square root of 51115295 is about 7149.4961360924. The cubic root of 51115295 is about 371.1222198147.

The spelling of 51115295 in words is "fifty-one million, one hundred fifteen thousand, two hundred ninety-five".