25372443 has 4 divisors (see below), whose sum is σ = 33829928. Its totient is φ = 16914960.

The previous prime is 25372439. The next prime is 25372453. The reversal of 25372443 is 34427352.

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

It is not a de Polignac number, because 25372443 - 2² = 25372439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25372443.

It is not an unprimeable number, because it can be changed into a prime (25372423) 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, 4228738 + ... + 4228743.

It is an arithmetic number, because the mean of its divisors is an integer number (8457482).

Almost surely, 2^25372443 is an apocalyptic number.

25372443 is a deficient number, since it is larger than the sum of its proper divisors (8457485).

25372443 is an equidigital number, since it uses as much as digits as its factorization.

25372443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8457484.

The product of its digits is 20160, while the sum is 30.

The square root of 25372443 is about 5037.1066099498. The cubic root of 25372443 is about 293.8466621376.

Adding to 25372443 its reverse (34427352), we get a palindrome (59799795).

The spelling of 25372443 in words is "twenty-five million, three hundred seventy-two thousand, four hundred forty-three".