25170563 has 8 divisors (see below), whose sum is σ = 27495936. Its totient is φ = 22851400.

The previous prime is 25170547. The next prime is 25170577. The reversal of 25170563 is 36507152.

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

It is not a de Polignac number, because 25170563 - 2⁴ = 25170547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25170503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12518 + ... + 14388.

It is an arithmetic number, because the mean of its divisors is an integer number (3436992).

Almost surely, 2^25170563 is an apocalyptic number.

25170563 is a deficient number, since it is larger than the sum of its proper divisors (2325373).

25170563 is a wasteful number, since it uses less digits than its factorization.

25170563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 25170563 is about 5017.0273070814. The cubic root of 25170563 is about 293.0652395816.

The spelling of 25170563 in words is "twenty-five million, one hundred seventy thousand, five hundred sixty-three".