51494111 has 8 divisors (see below), whose sum is σ = 54276480. Its totient is φ = 48778912.

The previous prime is 51494089. The next prime is 51494119. The reversal of 51494111 is 11149415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51494111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51494119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15215 + ... + 18288.

It is an arithmetic number, because the mean of its divisors is an integer number (6784560).

Almost surely, 2^51494111 is an apocalyptic number.

51494111 is a deficient number, since it is larger than the sum of its proper divisors (2782369).

51494111 is a wasteful number, since it uses less digits than its factorization.

51494111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33585.

The product of its digits is 720, while the sum is 26.

The square root of 51494111 is about 7175.9397294013. The cubic root of 51494111 is about 372.0367612147.

The spelling of 51494111 in words is "fifty-one million, four hundred ninety-four thousand, one hundred eleven".