25243567 has 2 divisors, whose sum is σ = 25243568. Its totient is φ = 25243566.

The previous prime is 25243541. The next prime is 25243573. The reversal of 25243567 is 76534252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25243567 - 2¹⁵ = 25210799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25243507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12621783 + 12621784.

It is an arithmetic number, because the mean of its divisors is an integer number (12621784).

Almost surely, 2^25243567 is an apocalyptic number.

25243567 is a deficient number, since it is larger than the sum of its proper divisors (1).

25243567 is an equidigital number, since it uses as much as digits as its factorization.

25243567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 34.

The square root of 25243567 is about 5024.2976623604. The cubic root of 25243567 is about 293.3482988519.

The spelling of 25243567 in words is "twenty-five million, two hundred forty-three thousand, five hundred sixty-seven".