51118616 has 16 divisors (see below), whose sum is σ = 95923440. Its totient is φ = 25539040.

The previous prime is 51118589. The next prime is 51118631. The reversal of 51118616 is 61681115.

It is a super-2 number, since 2×51118616² = 5226225803510912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17501 + ... + 20211.

It is an arithmetic number, because the mean of its divisors is an integer number (5995215).

Almost surely, 2^51118616 is an apocalyptic number.

It is an amenable number.

51118616 is a deficient number, since it is larger than the sum of its proper divisors (44804824).

51118616 is a wasteful number, since it uses less digits than its factorization.

51118616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074 (or 5070 counting only the distinct ones).

The product of its digits is 1440, while the sum is 29.

The square root of 51118616 is about 7149.7283864494. The cubic root of 51118616 is about 371.1302570059.

The spelling of 51118616 in words is "fifty-one million, one hundred eighteen thousand, six hundred sixteen".