51766120001 has 2 divisors, whose sum is σ = 51766120002. Its totient is φ = 51766120000.

The previous prime is 51766119919. The next prime is 51766120057. The reversal of 51766120001 is 10002166715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33085791025 + 18680328976 = 181895^2 + 136676^2 .

It is a cyclic number.

It is not a de Polignac number, because 51766120001 - 2¹⁰ = 51766118977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51766120061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25883060000 + 25883060001.

It is an arithmetic number, because the mean of its divisors is an integer number (25883060001).

Almost surely, 2^51766120001 is an apocalyptic number.

It is an amenable number.

51766120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

51766120001 is an equidigital number, since it uses as much as digits as its factorization.

51766120001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 51766120001 its reverse (10002166715), we get a palindrome (61768286716).

The spelling of 51766120001 in words is "fifty-one billion, seven hundred sixty-six million, one hundred twenty thousand, one".