25736533 has 2 divisors, whose sum is σ = 25736534. Its totient is φ = 25736532.

The previous prime is 25736531. The next prime is 25736549. The reversal of 25736533 is 33563752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18861649 + 6874884 = 4343^2 + 2622^2 .

It is a cyclic number.

It is not a de Polignac number, because 25736533 - 2¹ = 25736531 is a prime.

Together with 25736531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25736531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12868266 + 12868267.

It is an arithmetic number, because the mean of its divisors is an integer number (12868267).

Almost surely, 2^25736533 is an apocalyptic number.

It is an amenable number.

25736533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25736533 is an equidigital number, since it uses as much as digits as its factorization.

25736533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 34.

The square root of 25736533 is about 5073.1186660673. The cubic root of 25736533 is about 295.2455410445.

The spelling of 25736533 in words is "twenty-five million, seven hundred thirty-six thousand, five hundred thirty-three".