25443043 has 4 divisors (see below), whose sum is σ = 25496640. Its totient is φ = 25389448.

The previous prime is 25443029. The next prime is 25443059. The reversal of 25443043 is 34034452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25443043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25442999 and 25443017.

It is not an unprimeable number, because it can be changed into a prime (25443023) 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, 26080 + ... + 27037.

It is an arithmetic number, because the mean of its divisors is an integer number (6374160).

Almost surely, 2^25443043 is an apocalyptic number.

25443043 is a deficient number, since it is larger than the sum of its proper divisors (53597).

25443043 is an equidigital number, since it uses as much as digits as its factorization.

25443043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53596.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 25443043 is about 5044.1097331442. The cubic root of 25443043 is about 294.1189570600.

Adding to 25443043 its reverse (34034452), we get a palindrome (59477495).

The spelling of 25443043 in words is "twenty-five million, four hundred forty-three thousand, forty-three".