47521661233 has 2 divisors, whose sum is σ = 47521661234. Its totient is φ = 47521661232.

The previous prime is 47521661227. The next prime is 47521661281. The reversal of 47521661233 is 33216612574.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29765565729 + 17756095504 = 172527^2 + 133252^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47521661233 is a prime.

It is not a weakly prime, because it can be changed into another prime (47521661293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23760830616 + 23760830617.

It is an arithmetic number, because the mean of its divisors is an integer number (23760830617).

Almost surely, 2^47521661233 is an apocalyptic number.

It is an amenable number.

47521661233 is a deficient number, since it is larger than the sum of its proper divisors (1).

47521661233 is an equidigital number, since it uses as much as digits as its factorization.

47521661233 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 47521661233 in words is "forty-seven billion, five hundred twenty-one million, six hundred sixty-one thousand, two hundred thirty-three".