51700755507 has 4 divisors (see below), whose sum is σ = 68934340680. Its totient is φ = 34467170336.

The previous prime is 51700755503. The next prime is 51700755541. The reversal of 51700755507 is 70555700715.

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 51700755507 - 2² = 51700755503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51700755503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8616792582 + ... + 8616792587.

It is an arithmetic number, because the mean of its divisors is an integer number (17233585170).

Almost surely, 2^51700755507 is an apocalyptic number.

51700755507 is a deficient number, since it is larger than the sum of its proper divisors (17233585173).

51700755507 is a wasteful number, since it uses less digits than its factorization.

51700755507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17233585172.

The product of its (nonzero) digits is 214375, while the sum is 42.

The spelling of 51700755507 in words is "fifty-one billion, seven hundred million, seven hundred fifty-five thousand, five hundred seven".