22425505 has 8 divisors (see below), whose sum is σ = 26941824. Its totient is φ = 17919600.

The previous prime is 22425457. The next prime is 22425517. The reversal of 22425505 is 50552422.

It is a happy number.

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

It is not a de Polignac number, because 22425505 - 2⁹ = 22424993 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 22425505.

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 7 ways as a sum of consecutive naturals, for example, 3400 + ... + 7510.

It is an arithmetic number, because the mean of its divisors is an integer number (3367728).

Almost surely, 2^22425505 is an apocalyptic number.

It is an amenable number.

22425505 is a deficient number, since it is larger than the sum of its proper divisors (4516319).

22425505 is a wasteful number, since it uses less digits than its factorization.

22425505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 22425505 is about 4735.5575173363. The cubic root of 22425505 is about 281.9988976031.

Adding to 22425505 its reverse (50552422), we get a palindrome (72977927).

The spelling of 22425505 in words is "twenty-two million, four hundred twenty-five thousand, five hundred five".