25416243 has 12 divisors (see below), whose sum is σ = 38644840. Its totient is φ = 16052256.

The previous prime is 25416233. The next prime is 25416247. The reversal of 25416243 is 34261452.

25416243 is a `hidden beast` number, since 2 + 5 + 416 + 243 = 666.

It is not a de Polignac number, because 25416243 - 2⁵ = 25416211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25416247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74146 + ... + 74487.

Almost surely, 2^25416243 is an apocalyptic number.

25416243 is a deficient number, since it is larger than the sum of its proper divisors (13228597).

25416243 is a wasteful number, since it uses less digits than its factorization.

25416243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148658 (or 148655 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 25416243 is about 5041.4524692791. The cubic root of 25416243 is about 294.0156523667.

Adding to 25416243 its reverse (34261452), we get a palindrome (59677695).

The spelling of 25416243 in words is "twenty-five million, four hundred sixteen thousand, two hundred forty-three".