51711075757 has 4 divisors (see below), whose sum is σ = 56412082656. Its totient is φ = 47010068860.

The previous prime is 51711075719. The next prime is 51711075763. The reversal of 51711075757 is 75757011715.

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 51711075757 - 2⁷ = 51711075629 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 (51711075797) 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, 2350503433 + ... + 2350503454.

It is an arithmetic number, because the mean of its divisors is an integer number (14103020664).

Almost surely, 2^51711075757 is an apocalyptic number.

It is an amenable number.

51711075757 is a deficient number, since it is larger than the sum of its proper divisors (4701006899).

51711075757 is a wasteful number, since it uses less digits than its factorization.

51711075757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701006898.

The product of its (nonzero) digits is 300125, while the sum is 46.

The spelling of 51711075757 in words is "fifty-one billion, seven hundred eleven million, seventy-five thousand, seven hundred fifty-seven".