25155959 has 4 divisors (see below), whose sum is σ = 25203000. Its totient is φ = 25108920.

The previous prime is 25155941. The next prime is 25156003. The reversal of 25155959 is 95955152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25155959 - 2⁸ = 25155703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25155929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22709 + ... + 23790.

It is an arithmetic number, because the mean of its divisors is an integer number (6300750).

Almost surely, 2^25155959 is an apocalyptic number.

25155959 is a deficient number, since it is larger than the sum of its proper divisors (47041).

25155959 is an equidigital number, since it uses as much as digits as its factorization.

25155959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47040.

The product of its digits is 101250, while the sum is 41.

The square root of 25155959 is about 5015.5716523643. The cubic root of 25155959 is about 293.0085496463.

The spelling of 25155959 in words is "twenty-five million, one hundred fifty-five thousand, nine hundred fifty-nine".