51985182 has 16 divisors (see below), whose sum is σ = 104242320. Its totient is φ = 17283072.

The previous prime is 51985163. The next prime is 51985207. The reversal of 51985182 is 28158915.

It is a self number, because there is not a number n which added to its sum of digits gives 51985182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8803 + ... + 13470.

It is an arithmetic number, because the mean of its divisors is an integer number (6515145).

Almost surely, 2^51985182 is an apocalyptic number.

51985182 is an abundant number, since it is smaller than the sum of its proper divisors (52257138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51985182 is a wasteful number, since it uses less digits than its factorization.

51985182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22667.

The product of its digits is 28800, while the sum is 39.

The square root of 51985182 is about 7210.0750342836. The cubic root of 51985182 is about 373.2156582428.

The spelling of 51985182 in words is "fifty-one million, nine hundred eighty-five thousand, one hundred eighty-two".