51982616 has 32 divisors (see below), whose sum is σ = 115236000. Its totient is φ = 21509376.

The previous prime is 51982607. The next prime is 51982621. The reversal of 51982616 is 61628915.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51982616.

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, 14381 + ... + 17628.

It is an arithmetic number, because the mean of its divisors is an integer number (3601125).

Almost surely, 2^51982616 is an apocalyptic number.

51982616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51982616 is an abundant number, since it is smaller than the sum of its proper divisors (63253384).

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

51982616 is a wasteful number, since it uses less digits than its factorization.

51982616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32051 (or 32047 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 51982616 is about 7209.8970866442. The cubic root of 51982616 is about 373.2095174728.

The spelling of 51982616 in words is "fifty-one million, nine hundred eighty-two thousand, six hundred sixteen".