51998360 has 32 divisors (see below), whose sum is σ = 117784800. Its totient is φ = 20659200.

The previous prime is 51998351. The next prime is 51998389. The reversal of 51998360 is 6389915.

51998360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (3680775).

Almost surely, 2^51998360 is an apocalyptic number.

It is an amenable number.

51998360 is an abundant number, since it is smaller than the sum of its proper divisors (65786440).

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

51998360 is a wasteful number, since it uses less digits than its factorization.

51998360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8771 (or 8767 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 51998360 is about 7210.9888364912. The cubic root of 51998360 is about 373.2471917185.

The spelling of 51998360 in words is "fifty-one million, nine hundred ninety-eight thousand, three hundred sixty".