25653847 has 2 divisors, whose sum is σ = 25653848. Its totient is φ = 25653846.

The previous prime is 25653829. The next prime is 25653851. The reversal of 25653847 is 74835652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25653847 - 2²³ = 17265239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25653827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12826923 + 12826924.

It is an arithmetic number, because the mean of its divisors is an integer number (12826924).

Almost surely, 2^25653847 is an apocalyptic number.

25653847 is a deficient number, since it is larger than the sum of its proper divisors (1).

25653847 is an equidigital number, since it uses as much as digits as its factorization.

25653847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The square root of 25653847 is about 5064.9626849563. The cubic root of 25653847 is about 294.9290148078.

The spelling of 25653847 in words is "twenty-five million, six hundred fifty-three thousand, eight hundred forty-seven".