51056049998 has 8 divisors (see below), whose sum is σ = 76588872192. Its totient is φ = 25526425936.

The previous prime is 51056049959. The next prime is 51056050027. The reversal of 51056049998 is 89994065015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759215 + ... + 823722.

It is an arithmetic number, because the mean of its divisors is an integer number (9573609024).

Almost surely, 2^51056049998 is an apocalyptic number.

51056049998 is a deficient number, since it is larger than the sum of its proper divisors (25532822194).

51056049998 is a wasteful number, since it uses less digits than its factorization.

51056049998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599066.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 51056049998 in words is "fifty-one billion, fifty-six million, forty-nine thousand, nine hundred ninety-eight".