25633369 has 2 divisors, whose sum is σ = 25633370. Its totient is φ = 25633368.

The previous prime is 25633357. The next prime is 25633379. The reversal of 25633369 is 96333652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17539344 + 8094025 = 4188^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 25633369 - 2¹¹ = 25631321 is a prime.

It is a super-2 number, since 2×25633369² = 1314139212580322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25633319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12816684 + 12816685.

It is an arithmetic number, because the mean of its divisors is an integer number (12816685).

Almost surely, 2^25633369 is an apocalyptic number.

It is an amenable number.

25633369 is a deficient number, since it is larger than the sum of its proper divisors (1).

25633369 is an equidigital number, since it uses as much as digits as its factorization.

25633369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 37.

The square root of 25633369 is about 5062.9407462462. The cubic root of 25633369 is about 294.8505189251.

The spelling of 25633369 in words is "twenty-five million, six hundred thirty-three thousand, three hundred sixty-nine".