25630545 has 8 divisors (see below), whose sum is σ = 41008896. Its totient is φ = 13669616.

The previous prime is 25630513. The next prime is 25630559. The reversal of 25630545 is 54503652.

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 25630545 - 2⁵ = 25630513 is a prime.

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

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, 854337 + ... + 854366.

It is an arithmetic number, because the mean of its divisors is an integer number (5126112).

Almost surely, 2^25630545 is an apocalyptic number.

It is an amenable number.

25630545 is a deficient number, since it is larger than the sum of its proper divisors (15378351).

25630545 is a wasteful number, since it uses less digits than its factorization.

25630545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708711.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 25630545 is about 5062.6618492647. The cubic root of 25630545 is about 294.8396907419.

The spelling of 25630545 in words is "twenty-five million, six hundred thirty thousand, five hundred forty-five".