51198272 has 28 divisors (see below), whose sum is σ = 102412800. Its totient is φ = 25393536.

The previous prime is 51198247. The next prime is 51198289. The reversal of 51198272 is 27289115.

51198272 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4979 + ... + 11277.

It is an arithmetic number, because the mean of its divisors is an integer number (3657600).

Almost surely, 2^51198272 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 51198272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51206400).

51198272 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51198272 is a wasteful number, since it uses less digits than its factorization.

51198272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438 (or 6428 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 51198272 is about 7155.2967793097. The cubic root of 51198272 is about 371.3229292121.

The spelling of 51198272 in words is "fifty-one million, one hundred ninety-eight thousand, two hundred seventy-two".