25475818719433 has 2 divisors, whose sum is σ = 25475818719434. Its totient is φ = 25475818719432.

The previous prime is 25475818719413. The next prime is 25475818719469. The reversal of 25475818719433 is 33491781857452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23755125409929 + 1720693309504 = 4873923^2 + 1311752^2 .

It is a cyclic number.

It is not a de Polignac number, because 25475818719433 - 2²⁹ = 25475281848521 is a prime.

It is not a weakly prime, because it can be changed into another prime (25475818719413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12737909359716 + 12737909359717.

It is an arithmetic number, because the mean of its divisors is an integer number (12737909359717).

Almost surely, 2^{25475818719433} is an apocalyptic number.

It is an amenable number.

25475818719433 is a deficient number, since it is larger than the sum of its proper divisors (1).

25475818719433 is an equidigital number, since it uses as much as digits as its factorization.

25475818719433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 203212800, while the sum is 67.

The spelling of 25475818719433 in words is "twenty-five trillion, four hundred seventy-five billion, eight hundred eighteen million, seven hundred nineteen thousand, four hundred thirty-three".