25387005 has 16 divisors (see below), whose sum is σ = 46422144. Its totient is φ = 11605440.

The previous prime is 25386971. The next prime is 25387013. The reversal of 25387005 is 50078352.

It is a happy number.

It is not a de Polignac number, because 25387005 - 2²⁰ = 24338429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120786 + ... + 120995.

It is an arithmetic number, because the mean of its divisors is an integer number (2901384).

Almost surely, 2^25387005 is an apocalyptic number.

It is an amenable number.

25387005 is a deficient number, since it is larger than the sum of its proper divisors (21035139).

25387005 is a wasteful number, since it uses less digits than its factorization.

25387005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241796.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 25387005 is about 5038.5518752912. The cubic root of 25387005 is about 293.9028671674.

The spelling of 25387005 in words is "twenty-five million, three hundred eighty-seven thousand, five".