22335425 has 18 divisors (see below), whose sum is σ = 32219478. Its totient is φ = 15314880.

The previous prime is 22335421. The next prime is 22335427. The reversal of 22335425 is 52453322.

22335425 = 651² + 652² + ... + 699².

It can be written as a sum of positive squares in 3 ways, for example, as 2202256 + 20133169 = 1484^2 + 4487^2 .

It is not a de Polignac number, because 22335425 - 2² = 22335421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22335394 and 22335403.

It is not an unprimeable number, because it can be changed into a prime (22335421) 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 17 ways as a sum of consecutive naturals, for example, 7892 + ... + 10341.

It is an arithmetic number, because the mean of its divisors is an integer number (1789971).

Almost surely, 2^22335425 is an apocalyptic number.

22335425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22335425 is a deficient number, since it is larger than the sum of its proper divisors (9884053).

22335425 is a wasteful number, since it uses less digits than its factorization.

22335425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18257 (or 18245 counting only the distinct ones).

The product of its digits is 7200, while the sum is 26.

The square root of 22335425 is about 4726.0369232582. The cubic root of 22335425 is about 281.6208080206.

Adding to 22335425 its reverse (52453322), we get a palindrome (74788747).

The spelling of 22335425 in words is "twenty-two million, three hundred thirty-five thousand, four hundred twenty-five".