25200045 has 64 divisors (see below), whose sum is σ = 49109760. Its totient is φ = 12185856.

The previous prime is 25200041. The next prime is 25200047. The reversal of 25200045 is 54000252.

It is not a de Polignac number, because 25200045 - 2² = 25200041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25200041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145579 + ... + 145751.

It is an arithmetic number, because the mean of its divisors is an integer number (767340).

Almost surely, 2^25200045 is an apocalyptic number.

It is an amenable number.

25200045 is a deficient number, since it is larger than the sum of its proper divisors (23909715).

25200045 is a wasteful number, since it uses less digits than its factorization.

25200045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25200045 is about 5019.9646413097. The cubic root of 25200045 is about 293.1796162871.

Adding to 25200045 its reverse (54000252), we get a palindrome (79200297).

The spelling of 25200045 in words is "twenty-five million, two hundred thousand, forty-five".