25921838053 has 2 divisors, whose sum is σ = 25921838054. Its totient is φ = 25921838052.

The previous prime is 25921838027. The next prime is 25921838147. The reversal of 25921838053 is 35083812952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14507479809 + 11414358244 = 120447^2 + 106838^2 .

It is a cyclic number.

It is not a de Polignac number, because 25921838053 - 2⁵ = 25921838021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25921837994 and 25921838012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25921838653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12960919026 + 12960919027.

It is an arithmetic number, because the mean of its divisors is an integer number (12960919027).

Almost surely, 2^25921838053 is an apocalyptic number.

It is an amenable number.

25921838053 is a deficient number, since it is larger than the sum of its proper divisors (1).

25921838053 is an equidigital number, since it uses as much as digits as its factorization.

25921838053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 25921838053 in words is "twenty-five billion, nine hundred twenty-one million, eight hundred thirty-eight thousand, fifty-three".