51694111 has 8 divisors (see below), whose sum is σ = 59179680. Its totient is φ = 44233728.

The previous prime is 51694099. The next prime is 51694129. The reversal of 51694111 is 11149615.

51694111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51694111 - 2⁹ = 51693599 is a prime.

It is a super-2 number, since 2×51694111² = 5344562224160642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51694111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51694171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666 + ... + 10303.

It is an arithmetic number, because the mean of its divisors is an integer number (7397460).

Almost surely, 2^51694111 is an apocalyptic number.

51694111 is a deficient number, since it is larger than the sum of its proper divisors (7485569).

51694111 is a wasteful number, since it uses less digits than its factorization.

51694111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12593.

The product of its digits is 1080, while the sum is 28.

The square root of 51694111 is about 7189.8616815624. The cubic root of 51694111 is about 372.5177950450.

The spelling of 51694111 in words is "fifty-one million, six hundred ninety-four thousand, one hundred eleven".