22022525 has 24 divisors (see below), whose sum is σ = 31736064. Its totient is φ = 14846400.

The previous prime is 22022509. The next prime is 22022543. The reversal of 22022525 is 52522022.

It is a happy number.

It is not a de Polignac number, because 22022525 - 2⁴ = 22022509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22022497 and 22022506.

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 23 ways as a sum of consecutive naturals, for example, 9644 + ... + 11706.

It is an arithmetic number, because the mean of its divisors is an integer number (1322336).

Almost surely, 2^22022525 is an apocalyptic number.

22022525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22022525 is a deficient number, since it is larger than the sum of its proper divisors (9713539).

22022525 is a wasteful number, since it uses less digits than its factorization.

22022525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22022525 is about 4692.8163185874. The cubic root of 22022525 is about 280.2995306526.

Adding to 22022525 its reverse (52522022), we get a palindrome (74544547).

The spelling of 22022525 in words is "twenty-two million, twenty-two thousand, five hundred twenty-five".