52435196921 has 2 divisors, whose sum is σ = 52435196922. Its totient is φ = 52435196920.

The previous prime is 52435196753. The next prime is 52435196941. The reversal of 52435196921 is 12969153425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51320371600 + 1114825321 = 226540^2 + 33389^2 .

It is a cyclic number.

It is not a de Polignac number, because 52435196921 - 2¹⁸ = 52434934777 is a prime.

It is a super-2 number, since 2×52435196921² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52435196941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26217598460 + 26217598461.

It is an arithmetic number, because the mean of its divisors is an integer number (26217598461).

Almost surely, 2^52435196921 is an apocalyptic number.

It is an amenable number.

52435196921 is a deficient number, since it is larger than the sum of its proper divisors (1).

52435196921 is an equidigital number, since it uses as much as digits as its factorization.

52435196921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 47.

The spelling of 52435196921 in words is "fifty-two billion, four hundred thirty-five million, one hundred ninety-six thousand, nine hundred twenty-one".