25212545 has 8 divisors (see below), whose sum is σ = 30295296. Its totient is φ = 20143216.

The previous prime is 25212541. The next prime is 25212553. The reversal of 25212545 is 54521252.

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 25212545 - 2² = 25212541 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 (25212541) 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, 1394 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (3786912).

Almost surely, 2^25212545 is an apocalyptic number.

It is an amenable number.

25212545 is a deficient number, since it is larger than the sum of its proper divisors (5082751).

25212545 is an equidigital number, since it uses as much as digits as its factorization.

25212545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711.

The product of its digits is 4000, while the sum is 26.

The square root of 25212545 is about 5021.2095156446. The cubic root of 25212545 is about 293.2280836533.

Adding to 25212545 its reverse (54521252), we get a palindrome (79733797).

The spelling of 25212545 in words is "twenty-five million, two hundred twelve thousand, five hundred forty-five".