25140845 has 16 divisors (see below), whose sum is σ = 31664640. Its totient is φ = 19137600.

The previous prime is 25140839. The next prime is 25140847. The reversal of 25140845 is 54804152.

It is not a de Polignac number, because 25140845 - 2⁸ = 25140589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8126 + ... + 10784.

It is an arithmetic number, because the mean of its divisors is an integer number (1979040).

Almost surely, 2^25140845 is an apocalyptic number.

It is an amenable number.

25140845 is a deficient number, since it is larger than the sum of its proper divisors (6523795).

25140845 is a wasteful number, since it uses less digits than its factorization.

25140845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 25140845 is about 5014.0647183697. The cubic root of 25140845 is about 292.9498568806.

Adding to 25140845 its reverse (54804152), we get a palindrome (79944997).

The spelling of 25140845 in words is "twenty-five million, one hundred forty thousand, eight hundred forty-five".