25535693 has 2 divisors, whose sum is σ = 25535694. Its totient is φ = 25535692.

The previous prime is 25535669. The next prime is 25535767. The reversal of 25535693 is 39653552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22448644 + 3087049 = 4738^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 25535693 - 2¹⁴ = 25519309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25535623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12767846 + 12767847.

It is an arithmetic number, because the mean of its divisors is an integer number (12767847).

Almost surely, 2^25535693 is an apocalyptic number.

It is an amenable number.

25535693 is a deficient number, since it is larger than the sum of its proper divisors (1).

25535693 is an equidigital number, since it uses as much as digits as its factorization.

25535693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121500, while the sum is 38.

The square root of 25535693 is about 5053.2853669667. The cubic root of 25535693 is about 294.4755327432.

The spelling of 25535693 in words is "twenty-five million, five hundred thirty-five thousand, six hundred ninety-three".