51166115 has 32 divisors (see below), whose sum is σ = 82446336. Its totient is φ = 29439360.

The previous prime is 51166109. The next prime is 51166123.

51166115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51166115 - 2⁶ = 51166051 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107 + ... + 10116.

It is an arithmetic number, because the mean of its divisors is an integer number (2576448).

Almost surely, 2^51166115 is an apocalyptic number.

51166115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51166115 is a deficient number, since it is larger than the sum of its proper divisors (31280221).

51166115 is a wasteful number, since it uses less digits than its factorization.

51166115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10259.

The product of its digits is 900, while the sum is 26.

The square root of 51166115 is about 7153.0493497529. The cubic root of 51166115 is about 371.2451718207.

The spelling of 51166115 in words is "fifty-one million, one hundred sixty-six thousand, one hundred fifteen".