25525847 has 2 divisors, whose sum is σ = 25525848. Its totient is φ = 25525846.

The previous prime is 25525817. The next prime is 25525859. The reversal of 25525847 is 74852552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25525847 - 2¹² = 25521751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25525847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25525817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762923 + 12762924.

It is an arithmetic number, because the mean of its divisors is an integer number (12762924).

Almost surely, 2^25525847 is an apocalyptic number.

25525847 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525847 is an equidigital number, since it uses as much as digits as its factorization.

25525847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112000, while the sum is 38.

The square root of 25525847 is about 5052.3110553488. The cubic root of 25525847 is about 294.4376801210.

The spelling of 25525847 in words is "twenty-five million, five hundred twenty-five thousand, eight hundred forty-seven".