51329115 has 24 divisors (see below), whose sum is σ = 90483120. Its totient is φ = 26910144.

The previous prime is 51329111. The next prime is 51329129. The reversal of 51329115 is 51192315.

It is not a de Polignac number, because 51329115 - 2² = 51329111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51329111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7012 + ... + 12321.

It is an arithmetic number, because the mean of its divisors is an integer number (3770130).

Almost surely, 2^51329115 is an apocalyptic number.

51329115 is a deficient number, since it is larger than the sum of its proper divisors (39154005).

51329115 is a wasteful number, since it uses less digits than its factorization.

51329115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19403 (or 19400 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 51329115 is about 7164.4340320782. The cubic root of 51329115 is about 371.6389794395.

The spelling of 51329115 in words is "fifty-one million, three hundred twenty-nine thousand, one hundred fifteen".