51722863033 has 2 divisors, whose sum is σ = 51722863034. Its totient is φ = 51722863032.

The previous prime is 51722863019. The next prime is 51722863117. The reversal of 51722863033 is 33036822715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29517988864 + 22204874169 = 171808^2 + 149013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51722863033 is a prime.

It is not a weakly prime, because it can be changed into another prime (51752863033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25861431516 + 25861431517.

It is an arithmetic number, because the mean of its divisors is an integer number (25861431517).

Almost surely, 2^51722863033 is an apocalyptic number.

It is an amenable number.

51722863033 is a deficient number, since it is larger than the sum of its proper divisors (1).

51722863033 is an equidigital number, since it uses as much as digits as its factorization.

51722863033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 51722863033 in words is "fifty-one billion, seven hundred twenty-two million, eight hundred sixty-three thousand, thirty-three".