25632545 has 8 divisors (see below), whose sum is σ = 30937896. Its totient is φ = 20386816.

The previous prime is 25632533. The next prime is 25632553. The reversal of 25632545 is 54523652.

It can be written as a sum of positive squares in 4 ways, for example, as 16072081 + 9560464 = 4009^2 + 3092^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25632545 is a prime.

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

It is a Duffinian 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, 13952 + ... + 15681.

It is an arithmetic number, because the mean of its divisors is an integer number (3867237).

Almost surely, 2^25632545 is an apocalyptic number.

It is an amenable number.

25632545 is a deficient number, since it is larger than the sum of its proper divisors (5305351).

25632545 is a wasteful number, since it uses less digits than its factorization.

25632545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29811.

The product of its digits is 36000, while the sum is 32.

The square root of 25632545 is about 5062.8593699608. The cubic root of 25632545 is about 294.8473595091.

The spelling of 25632545 in words is "twenty-five million, six hundred thirty-two thousand, five hundred forty-five".