25250445 has 48 divisors (see below), whose sum is σ = 49420800. Its totient is φ = 11813760.

The previous prime is 25250441. The next prime is 25250453. The reversal of 25250445 is 54405252.

It is not a de Polignac number, because 25250445 - 2² = 25250441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13476 + ... + 15234.

It is an arithmetic number, because the mean of its divisors is an integer number (1029600).

Almost surely, 2^25250445 is an apocalyptic number.

It is an amenable number.

25250445 is a deficient number, since it is larger than the sum of its proper divisors (24170355).

25250445 is a wasteful number, since it uses less digits than its factorization.

25250445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 25250445 is about 5024.9820895203. The cubic root of 25250445 is about 293.3749388586.

Adding to 25250445 its reverse (54405252), we get a palindrome (79655697).

The spelling of 25250445 in words is "twenty-five million, two hundred fifty thousand, four hundred forty-five".