25259559 has 16 divisors (see below), whose sum is σ = 36470784. Its totient is φ = 15458400.

The previous prime is 25259519. The next prime is 25259593. The reversal of 25259559 is 95595252.

It is not a de Polignac number, because 25259559 - 2¹² = 25255463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25259559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25259519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5754 + ... + 9144.

It is an arithmetic number, because the mean of its divisors is an integer number (2279424).

Almost surely, 2^25259559 is an apocalyptic number.

25259559 is a deficient number, since it is larger than the sum of its proper divisors (11211225).

25259559 is a wasteful number, since it uses less digits than its factorization.

25259559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598.

The product of its digits is 202500, while the sum is 42.

The square root of 25259559 is about 5025.8888766068. Note that the first 4 decimals coincide. The cubic root of 25259559 is about 293.4102319337.

The spelling of 25259559 in words is "twenty-five million, two hundred fifty-nine thousand, five hundred fifty-nine".