25228545 has 8 divisors (see below), whose sum is σ = 40365696. Its totient is φ = 13455216.

The previous prime is 25228543. The next prime is 25228559. The reversal of 25228545 is 54582252.

It is a happy number.

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

It is not a de Polignac number, because 25228545 - 2¹ = 25228543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25228543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840937 + ... + 840966.

It is an arithmetic number, because the mean of its divisors is an integer number (5045712).

Almost surely, 2^25228545 is an apocalyptic number.

It is an amenable number.

25228545 is a deficient number, since it is larger than the sum of its proper divisors (15137151).

25228545 is a wasteful number, since it uses less digits than its factorization.

25228545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681911.

The product of its digits is 32000, while the sum is 33.

The square root of 25228545 is about 5022.8025045785. The cubic root of 25228545 is about 293.2900985119.

The spelling of 25228545 in words is "twenty-five million, two hundred twenty-eight thousand, five hundred forty-five".