25012641 has 16 divisors (see below), whose sum is σ = 34193664. Its totient is φ = 16258704.

The previous prime is 25012621. The next prime is 25012643. The reversal of 25012641 is 14621052.

It is not a de Polignac number, because 25012641 - 2⁶ = 25012577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25012643) 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, 20926 + ... + 22088.

It is an arithmetic number, because the mean of its divisors is an integer number (2137104).

Almost surely, 2^25012641 is an apocalyptic number.

It is an amenable number.

25012641 is a deficient number, since it is larger than the sum of its proper divisors (9181023).

25012641 is a wasteful number, since it uses less digits than its factorization.

25012641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25012641 is about 5001.2639402455. The cubic root of 25012641 is about 292.4510488614.

Adding to 25012641 its reverse (14621052), we get a palindrome (39633693).

The spelling of 25012641 in words is "twenty-five million, twelve thousand, six hundred forty-one".