25822567 has 2 divisors, whose sum is σ = 25822568. Its totient is φ = 25822566.

The previous prime is 25822553. The next prime is 25822613. The reversal of 25822567 is 76522852.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25822567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25822547) 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, 12911283 + 12911284.

It is an arithmetic number, because the mean of its divisors is an integer number (12911284).

Almost surely, 2^25822567 is an apocalyptic number.

25822567 is a deficient number, since it is larger than the sum of its proper divisors (1).

25822567 is an equidigital number, since it uses as much as digits as its factorization.

25822567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

The square root of 25822567 is about 5081.5909910185. The cubic root of 25822567 is about 295.5741647307.

It can be divided in two parts, 2 and 5822567, that added together give a square (5822569 = 2413²).

The spelling of 25822567 in words is "twenty-five million, eight hundred twenty-two thousand, five hundred sixty-seven".