51111694 has 8 divisors (see below), whose sum is σ = 76698360. Its totient is φ = 25545576.

The previous prime is 51111679. The next prime is 51111703. The reversal of 51111694 is 49611115.

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

It is a super-2 number, since 2×51111694² = 5224810527099272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5437 + ... + 11479.

It is an arithmetic number, because the mean of its divisors is an integer number (9587295).

Almost surely, 2^51111694 is an apocalyptic number.

51111694 is a deficient number, since it is larger than the sum of its proper divisors (25586666).

51111694 is a wasteful number, since it uses less digits than its factorization.

51111694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10274.

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

The square root of 51111694 is about 7149.2442957280. The cubic root of 51111694 is about 371.1135045988.

The spelling of 51111694 in words is "fifty-one million, one hundred eleven thousand, six hundred ninety-four".