25853003505533 has 2 divisors, whose sum is σ = 25853003505534. Its totient is φ = 25853003505532.

The previous prime is 25853003505517. The next prime is 25853003505541. The reversal of 25853003505533 is 33550530035852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25797835830649 + 55167674884 = 5079157^2 + 234878^2 .

It is a cyclic number.

It is not a de Polignac number, because 25853003505533 - 2⁴ = 25853003505517 is a prime.

It is a super-2 number, since 2×25853003505533² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25853003505503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12926501752766 + 12926501752767.

It is an arithmetic number, because the mean of its divisors is an integer number (12926501752767).

Almost surely, 2^{25853003505533} is an apocalyptic number.

It is an amenable number.

25853003505533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25853003505533 is an equidigital number, since it uses as much as digits as its factorization.

25853003505533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050000, while the sum is 47.

The spelling of 25853003505533 in words is "twenty-five trillion, eight hundred fifty-three billion, three million, five hundred five thousand, five hundred thirty-three".