25454563 has 8 divisors (see below), whose sum is σ = 26159616. Its totient is φ = 24753600.

The previous prime is 25454543. The next prime is 25454579. The reversal of 25454563 is 36545452.

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 25454563 - 2⁵ = 25454531 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25454543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14893 + ... + 16513.

It is an arithmetic number, because the mean of its divisors is an integer number (3269952).

Almost surely, 2^25454563 is an apocalyptic number.

25454563 is a deficient number, since it is larger than the sum of its proper divisors (705053).

25454563 is a wasteful number, since it uses less digits than its factorization.

25454563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045.

The product of its digits is 72000, while the sum is 34.

The square root of 25454563 is about 5045.2515299041. The cubic root of 25454563 is about 294.1633403667.

The spelling of 25454563 in words is "twenty-five million, four hundred fifty-four thousand, five hundred sixty-three".