51198291 has 16 divisors (see below), whose sum is σ = 76062720. Its totient is φ = 34036200.

The previous prime is 51198289. The next prime is 51198307. The reversal of 51198291 is 19289115.

51198291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51198291 - 2¹ = 51198289 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51198221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7866 + ... + 12816.

It is an arithmetic number, because the mean of its divisors is an integer number (4753920).

Almost surely, 2^51198291 is an apocalyptic number.

51198291 is a deficient number, since it is larger than the sum of its proper divisors (24864429).

51198291 is a wasteful number, since it uses less digits than its factorization.

51198291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5343 (or 5337 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The square root of 51198291 is about 7155.2981069974. The cubic root of 51198291 is about 371.3229751455.

The spelling of 51198291 in words is "fifty-one million, one hundred ninety-eight thousand, two hundred ninety-one".