51306535711 has 4 divisors (see below), whose sum is σ = 51330083800. Its totient is φ = 51282987624.

The previous prime is 51306535691. The next prime is 51306535717. The reversal of 51306535711 is 11753560315.

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

It is a cyclic number.

It is not a de Polignac number, because 51306535711 - 2⁹ = 51306535199 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 (51306535717) 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, 11770776 + ... + 11775133.

It is an arithmetic number, because the mean of its divisors is an integer number (12832520950).

Almost surely, 2^51306535711 is an apocalyptic number.

51306535711 is a deficient number, since it is larger than the sum of its proper divisors (23548089).

51306535711 is a wasteful number, since it uses less digits than its factorization.

51306535711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23548088.

The product of its (nonzero) digits is 47250, while the sum is 37.

The spelling of 51306535711 in words is "fifty-one billion, three hundred six million, five hundred thirty-five thousand, seven hundred eleven".