25955663 has 2 divisors, whose sum is σ = 25955664. Its totient is φ = 25955662.

The previous prime is 25955627. The next prime is 25955681. The reversal of 25955663 is 36655952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25955663 - 2¹⁴ = 25939279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25955663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25955263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12977831 + 12977832.

It is an arithmetic number, because the mean of its divisors is an integer number (12977832).

Almost surely, 2^25955663 is an apocalyptic number.

25955663 is a deficient number, since it is larger than the sum of its proper divisors (1).

25955663 is an equidigital number, since it uses as much as digits as its factorization.

25955663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243000, while the sum is 41.

The square root of 25955663 is about 5094.6700580116. The cubic root of 25955663 is about 296.0811159172.

The spelling of 25955663 in words is "twenty-five million, nine hundred fifty-five thousand, six hundred sixty-three".