25223542 has 16 divisors (see below), whose sum is σ = 38907792. Its totient is φ = 12257280.

The previous prime is 25223509. The next prime is 25223551. The reversal of 25223542 is 24532252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20118 + ... + 21334.

It is an arithmetic number, because the mean of its divisors is an integer number (2431737).

Almost surely, 2^25223542 is an apocalyptic number.

25223542 is a deficient number, since it is larger than the sum of its proper divisors (13684250).

25223542 is a wasteful number, since it uses less digits than its factorization.

25223542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503.

The product of its digits is 4800, while the sum is 25.

The square root of 25223542 is about 5022.3044511459. The cubic root of 25223542 is about 293.2707100591.

Adding to 25223542 its reverse (24532252), we get a palindrome (49755794).

The spelling of 25223542 in words is "twenty-five million, two hundred twenty-three thousand, five hundred forty-two".