25423442 has 8 divisors (see below), whose sum is σ = 41602032. Its totient is φ = 11556100.

The previous prime is 25423427. The next prime is 25423451. The reversal of 25423442 is 24432452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 577784 + ... + 577827.

It is an arithmetic number, because the mean of its divisors is an integer number (5200254).

Almost surely, 2^25423442 is an apocalyptic number.

25423442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25423442 is a deficient number, since it is larger than the sum of its proper divisors (16178590).

25423442 is a wasteful number, since it uses less digits than its factorization.

25423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155624.

The product of its digits is 7680, while the sum is 26.

The square root of 25423442 is about 5042.1663994755. The cubic root of 25423442 is about 294.0434091425.

Adding to 25423442 its reverse (24432452), we get a palindrome (49855894).

The spelling of 25423442 in words is "twenty-five million, four hundred twenty-three thousand, four hundred forty-two".