51040115 has 16 divisors (see below), whose sum is σ = 71428800. Its totient is φ = 34997760.

The previous prime is 51040081. The next prime is 51040127. The reversal of 51040115 is 51104015.

It is not a de Polignac number, because 51040115 - 2⁶ = 51040051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51040093 and 51040102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13166 + ... + 16595.

It is an arithmetic number, because the mean of its divisors is an integer number (4464300).

Almost surely, 2^51040115 is an apocalyptic number.

51040115 is a deficient number, since it is larger than the sum of its proper divisors (20388685).

51040115 is an equidigital number, since it uses as much as digits as its factorization.

51040115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29787 (or 29773 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 51040115 is about 7144.2364882470. The cubic root of 51040115 is about 370.9401825952.

The spelling of 51040115 in words is "fifty-one million, forty thousand, one hundred fifteen".