51808034101 has 4 divisors (see below), whose sum is σ = 51809969952. Its totient is φ = 51806098252.

The previous prime is 51808034087. The next prime is 51808034137. The reversal of 51808034101 is 10143080815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51808034101 - 2²³ = 51799645493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51808034401) 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, 927211 + ... + 981496.

It is an arithmetic number, because the mean of its divisors is an integer number (12952492488).

Almost surely, 2^51808034101 is an apocalyptic number.

It is an amenable number.

51808034101 is a deficient number, since it is larger than the sum of its proper divisors (1935851).

51808034101 is a wasteful number, since it uses less digits than its factorization.

51808034101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935850.

The product of its (nonzero) digits is 3840, while the sum is 31.

The spelling of 51808034101 in words is "fifty-one billion, eight hundred eight million, thirty-four thousand, one hundred one".