25253443 has 4 divisors (see below), whose sum is σ = 25274128. Its totient is φ = 25232760.

The previous prime is 25253441. The next prime is 25253453. The reversal of 25253443 is 34435252.

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 25253443 - 2¹ = 25253441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25253441) 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, 8388 + ... + 10993.

It is an arithmetic number, because the mean of its divisors is an integer number (6318532).

Almost surely, 2^25253443 is an apocalyptic number.

25253443 is a deficient number, since it is larger than the sum of its proper divisors (20685).

25253443 is a wasteful number, since it uses less digits than its factorization.

25253443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20684.

The product of its digits is 14400, while the sum is 28.

The square root of 25253443 is about 5025.2803901872. The cubic root of 25253443 is about 293.3865492581.

Adding to 25253443 its reverse (34435252), we get a palindrome (59688695).

The spelling of 25253443 in words is "twenty-five million, two hundred fifty-three thousand, four hundred forty-three".