25840567 has 2 divisors, whose sum is σ = 25840568. Its totient is φ = 25840566.

The previous prime is 25840543. The next prime is 25840609. The reversal of 25840567 is 76504852.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25840567 - 2¹⁹ = 25316279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25846567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12920283 + 12920284.

It is an arithmetic number, because the mean of its divisors is an integer number (12920284).

Almost surely, 2^25840567 is an apocalyptic number.

25840567 is a deficient number, since it is larger than the sum of its proper divisors (1).

25840567 is an equidigital number, since it uses as much as digits as its factorization.

25840567 is an evil number, because the sum of its binary digits is even.

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

The square root of 25840567 is about 5083.3617813412. The cubic root of 25840567 is about 295.6428268850.

The spelling of 25840567 in words is "twenty-five million, eight hundred forty thousand, five hundred sixty-seven".