25541247 has 16 divisors (see below), whose sum is σ = 35735040. Its totient is φ = 16195872.

The previous prime is 25541209. The next prime is 25541251. The reversal of 25541247 is 74214552.

It is not a de Polignac number, because 25541247 - 2⁷ = 25541119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25541267) 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, 12654 + ... + 14532.

It is an arithmetic number, because the mean of its divisors is an integer number (2233440).

Almost surely, 2^25541247 is an apocalyptic number.

25541247 is a deficient number, since it is larger than the sum of its proper divisors (10193793).

25541247 is a wasteful number, since it uses less digits than its factorization.

25541247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its digits is 11200, while the sum is 30.

The square root of 25541247 is about 5053.8348805635. The cubic root of 25541247 is about 294.4968806209.

Adding to 25541247 its reverse (74214552), we get a palindrome (99755799).

The spelling of 25541247 in words is "twenty-five million, five hundred forty-one thousand, two hundred forty-seven".