51117934 has 8 divisors (see below), whose sum is σ = 87630768. Its totient is φ = 21907680.

The previous prime is 51117931. The next prime is 51117949. The reversal of 51117934 is 43971115.

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

It is a super-2 number, since 2×51117934² = 5226086352856712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51117896 and 51117905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51117931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1825627 + ... + 1825654.

It is an arithmetic number, because the mean of its divisors is an integer number (10953846).

Almost surely, 2^51117934 is an apocalyptic number.

51117934 is a deficient number, since it is larger than the sum of its proper divisors (36512834).

51117934 is a wasteful number, since it uses less digits than its factorization.

51117934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651290.

The product of its digits is 3780, while the sum is 31.

The square root of 51117934 is about 7149.6806921708. The cubic root of 51117934 is about 371.1286065181.

The spelling of 51117934 in words is "fifty-one million, one hundred seventeen thousand, nine hundred thirty-four".