25615041 has 4 divisors (see below), whose sum is σ = 34153392. Its totient is φ = 17076692.

The previous prime is 25615013. The next prime is 25615049. The reversal of 25615041 is 14051652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25615041 - 2⁶ = 25614977 is a prime.

It is a super-2 number, since 2×25615041² = 1312260650863362, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25615049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4269171 + ... + 4269176.

It is an arithmetic number, because the mean of its divisors is an integer number (8538348).

Almost surely, 2^25615041 is an apocalyptic number.

It is an amenable number.

25615041 is a deficient number, since it is larger than the sum of its proper divisors (8538351).

25615041 is an equidigital number, since it uses as much as digits as its factorization.

25615041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8538350.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 25615041 is about 5061.1304073300. The cubic root of 25615041 is about 294.7802289216.

Adding to 25615041 its reverse (14051652), we get a palindrome (39666693).

The spelling of 25615041 in words is "twenty-five million, six hundred fifteen thousand, forty-one".