25389005 has 8 divisors (see below), whose sum is σ = 30525792. Its totient is φ = 20271888.

The previous prime is 25388999. The next prime is 25389011. The reversal of 25389005 is 50098352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25388999) and next prime (25389011).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25389005 - 2¹⁶ = 25323469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1907 + ... + 7376.

It is an arithmetic number, because the mean of its divisors is an integer number (3815724).

Almost surely, 2^25389005 is an apocalyptic number.

It is an amenable number.

25389005 is a deficient number, since it is larger than the sum of its proper divisors (5136787).

25389005 is an equidigital number, since it uses as much as digits as its factorization.

25389005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9835.

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

The square root of 25389005 is about 5038.7503411064. The cubic root of 25389005 is about 293.9105848993.

The spelling of 25389005 in words is "twenty-five million, three hundred eighty-nine thousand, five".