51522200817 has 8 divisors (see below), whose sum is σ = 68697316896. Its totient is φ = 34347609312.

The previous prime is 51522200797. The next prime is 51522200861. The reversal of 51522200817 is 71800222515.

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

It is not a de Polignac number, because 51522200817 - 2⁶ = 51522200753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51522200887) 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, 310653 + ... + 446709.

It is an arithmetic number, because the mean of its divisors is an integer number (8587164612).

Almost surely, 2^51522200817 is an apocalyptic number.

It is an amenable number.

51522200817 is a deficient number, since it is larger than the sum of its proper divisors (17175116079).

51522200817 is a wasteful number, since it uses less digits than its factorization.

51522200817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262287.

The product of its (nonzero) digits is 11200, while the sum is 33.

The spelling of 51522200817 in words is "fifty-one billion, five hundred twenty-two million, two hundred thousand, eight hundred seventeen".