25012443 has 16 divisors (see below), whose sum is σ = 34560000. Its totient is φ = 16074240.

The previous prime is 25012441. The next prime is 25012447. The reversal of 25012443 is 34421052.

It is not a de Polignac number, because 25012443 - 2¹ = 25012441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25012441) 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, 41458 + ... + 42056.

It is an arithmetic number, because the mean of its divisors is an integer number (2160000).

Almost surely, 2^25012443 is an apocalyptic number.

25012443 is a deficient number, since it is larger than the sum of its proper divisors (9547557).

25012443 is a wasteful number, since it uses less digits than its factorization.

25012443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25012443 is about 5001.2441452103. The cubic root of 25012443 is about 292.4502771788.

Adding to 25012443 its reverse (34421052), we get a palindrome (59433495).

The spelling of 25012443 in words is "twenty-five million, twelve thousand, four hundred forty-three".