25980043 has 4 divisors (see below), whose sum is σ = 26336008. Its totient is φ = 25624080.

The previous prime is 25980037. The next prime is 25980067. The reversal of 25980043 is 34008952.

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

It is a cyclic number.

It is not a de Polignac number, because 25980043 - 2⁹ = 25979531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25979987 and 25980014.

It is not an unprimeable number, because it can be changed into a prime (25980013) 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, 177873 + ... + 178018.

It is an arithmetic number, because the mean of its divisors is an integer number (6584002).

Almost surely, 2^25980043 is an apocalyptic number.

25980043 is a deficient number, since it is larger than the sum of its proper divisors (355965).

25980043 is an equidigital number, since it uses as much as digits as its factorization.

25980043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355964.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 25980043 is about 5097.0621930677. The cubic root of 25980043 is about 296.1737893183.

Adding to 25980043 its reverse (34008952), we get a palindrome (59988995).

The spelling of 25980043 in words is "twenty-five million, nine hundred eighty thousand, forty-three".