25772533 has 2 divisors, whose sum is σ = 25772534. Its totient is φ = 25772532.

The previous prime is 25772423. The next prime is 25772543. The reversal of 25772533 is 33527752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25220484 + 552049 = 5022^2 + 743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25772533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25772543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886266 + 12886267.

It is an arithmetic number, because the mean of its divisors is an integer number (12886267).

Almost surely, 2^25772533 is an apocalyptic number.

It is an amenable number.

25772533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25772533 is an equidigital number, since it uses as much as digits as its factorization.

25772533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 34.

The square root of 25772533 is about 5076.6655395052. The cubic root of 25772533 is about 295.3831390585.

The spelling of 25772533 in words is "twenty-five million, seven hundred seventy-two thousand, five hundred thirty-three".