25406159 has 2 divisors, whose sum is σ = 25406160. Its totient is φ = 25406158.

The previous prime is 25406137. The next prime is 25406189. The reversal of 25406159 is 95160452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25406159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25406119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12703079 + 12703080.

It is an arithmetic number, because the mean of its divisors is an integer number (12703080).

Almost surely, 2^25406159 is an apocalyptic number.

25406159 is a deficient number, since it is larger than the sum of its proper divisors (1).

25406159 is an equidigital number, since it uses as much as digits as its factorization.

25406159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 25406159 is about 5040.4522614543. The cubic root of 25406159 is about 293.9767632459.

The spelling of 25406159 in words is "twenty-five million, four hundred six thousand, one hundred fifty-nine".