51368998 has 4 divisors (see below), whose sum is σ = 77053500. Its totient is φ = 25684498.

The previous prime is 51368983. The next prime is 51369001. The reversal of 51368998 is 89986315.

51368998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 12842248 + ... + 12842251.

It is an arithmetic number, because the mean of its divisors is an integer number (19263375).

Almost surely, 2^51368998 is an apocalyptic number.

51368998 is a deficient number, since it is larger than the sum of its proper divisors (25684502).

51368998 is a wasteful number, since it uses less digits than its factorization.

51368998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25684501.

The product of its digits is 466560, while the sum is 49.

The square root of 51368998 is about 7167.2168936066. The cubic root of 51368998 is about 371.7352096857.

The spelling of 51368998 in words is "fifty-one million, three hundred sixty-eight thousand, nine hundred ninety-eight".