51285796603 has 4 divisors (see below), whose sum is σ = 51344010648. Its totient is φ = 51227582560.

The previous prime is 51285796579. The next prime is 51285796619. The reversal of 51285796603 is 30669758215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51285796603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51285794603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29105701 + ... + 29107462.

It is an arithmetic number, because the mean of its divisors is an integer number (12836002662).

Almost surely, 2^51285796603 is an apocalyptic number.

51285796603 is a deficient number, since it is larger than the sum of its proper divisors (58214045).

51285796603 is an equidigital number, since it uses as much as digits as its factorization.

51285796603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58214044.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 51285796603 in words is "fifty-one billion, two hundred eighty-five million, seven hundred ninety-six thousand, six hundred three".