51818683 has 16 divisors (see below), whose sum is σ = 60730560. Its totient is φ = 43295616.

The previous prime is 51818677. The next prime is 51818687. The reversal of 51818683 is 38681815.

It is not a de Polignac number, because 51818683 - 2²¹ = 49721531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51818687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72733 + ... + 73441.

It is an arithmetic number, because the mean of its divisors is an integer number (3795660).

Almost surely, 2^51818683 is an apocalyptic number.

51818683 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

51818683 is a deficient number, since it is larger than the sum of its proper divisors (8911877).

51818683 is a wasteful number, since it uses less digits than its factorization.

51818683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its digits is 46080, while the sum is 40.

The square root of 51818683 is about 7198.5195005640. The cubic root of 51818683 is about 372.8167850073.

The spelling of 51818683 in words is "fifty-one million, eight hundred eighteen thousand, six hundred eighty-three".