51198368 has 48 divisors (see below), whose sum is σ = 113291136. Its totient is φ = 22598400.

The previous prime is 51198319. The next prime is 51198377. The reversal of 51198368 is 86389115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6893 + ... + 12243.

It is an arithmetic number, because the mean of its divisors is an integer number (2360232).

Almost surely, 2^51198368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51198368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56645568).

51198368 is an abundant number, since it is smaller than the sum of its proper divisors (62092768).

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

51198368 is a wasteful number, since it uses less digits than its factorization.

51198368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397 (or 5389 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 51198368 is about 7155.3034876237. The cubic root of 51198368 is about 371.3231612966.

The spelling of 51198368 in words is "fifty-one million, one hundred ninety-eight thousand, three hundred sixty-eight".