25342443 has 16 divisors (see below), whose sum is σ = 42908160. Its totient is φ = 14481288.

The previous prime is 25342439. The next prime is 25342459. The reversal of 25342443 is 34424352.

It is not a de Polignac number, because 25342443 - 2² = 25342439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25342423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66855 + ... + 67232.

It is an arithmetic number, because the mean of its divisors is an integer number (2681760).

Almost surely, 2^25342443 is an apocalyptic number.

25342443 is a deficient number, since it is larger than the sum of its proper divisors (17565717).

25342443 is a wasteful number, since it uses less digits than its factorization.

25342443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134103 (or 134097 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 25342443 is about 5034.1278291279. The cubic root of 25342443 is about 293.7308031517.

Adding to 25342443 its reverse (34424352), we get a palindrome (59766795).

The spelling of 25342443 in words is "twenty-five million, three hundred forty-two thousand, four hundred forty-three".