51722065011 has 8 divisors (see below), whose sum is σ = 68987021760. Its totient is φ = 34469242472.

The previous prime is 51722064943. The next prime is 51722065033. The reversal of 51722065011 is 11056022715.

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

It is a cyclic number.

It is not a de Polignac number, because 51722065011 - 2³⁴ = 34542195827 is a prime.

It is a super-2 number, since 2×51722065011² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51722065011.

It is not an unprimeable number, because it can be changed into a prime (51722065211) 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, 3023601 + ... + 3040658.

It is an arithmetic number, because the mean of its divisors is an integer number (8623377720).

Almost surely, 2^51722065011 is an apocalyptic number.

51722065011 is a deficient number, since it is larger than the sum of its proper divisors (17264956749).

51722065011 is a wasteful number, since it uses less digits than its factorization.

51722065011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067105.

The product of its (nonzero) digits is 4200, while the sum is 30.

Adding to 51722065011 its reverse (11056022715), we get a palindrome (62778087726).

The spelling of 51722065011 in words is "fifty-one billion, seven hundred twenty-two million, sixty-five thousand, eleven".