25632563 has 16 divisors (see below), whose sum is σ = 28675296. Its totient is φ = 22717440.

The previous prime is 25632559. The next prime is 25632571. The reversal of 25632563 is 36523652.

It is a cyclic number.

It is not a de Polignac number, because 25632563 - 2² = 25632559 is a prime.

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

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (25632533) 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, 109895 + ... + 110127.

It is an arithmetic number, because the mean of its divisors is an integer number (1792206).

Almost surely, 2^25632563 is an apocalyptic number.

25632563 is a deficient number, since it is larger than the sum of its proper divisors (3042733).

25632563 is a wasteful number, since it uses less digits than its factorization.

25632563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454.

The product of its digits is 32400, while the sum is 32.

The square root of 25632563 is about 5062.8611476121. The cubic root of 25632563 is about 294.8474285262.

The spelling of 25632563 in words is "twenty-five million, six hundred thirty-two thousand, five hundred sixty-three".