51805726233 has 8 divisors (see below), whose sum is σ = 70680680928. Its totient is φ = 33733961184.

The previous prime is 51805726223. The next prime is 51805726253. The reversal of 51805726233 is 33262750815.

It is a happy number.

51805726233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-51805726233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51805726223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200797260 + ... + 200797517.

It is an arithmetic number, because the mean of its divisors is an integer number (8835085116).

Almost surely, 2^51805726233 is an apocalyptic number.

It is an amenable number.

51805726233 is a deficient number, since it is larger than the sum of its proper divisors (18874954695).

51805726233 is a wasteful number, since it uses less digits than its factorization.

51805726233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401594823.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 51805726233 in words is "fifty-one billion, eight hundred five million, seven hundred twenty-six thousand, two hundred thirty-three".