22545325 has 36 divisors (see below), whose sum is σ = 31912020. Its totient is φ = 15769600.

The previous prime is 22545317. The next prime is 22545329. The reversal of 22545325 is 52354522.

It can be written as a sum of positive squares in 6 ways, for example, as 894916 + 21650409 = 946^2 + 4653^2 .

It is not a de Polignac number, because 22545325 - 2³ = 22545317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22545293 and 22545302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22545329) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 87597 + ... + 87853.

It is an arithmetic number, because the mean of its divisors is an integer number (886445).

Almost surely, 2^22545325 is an apocalyptic number.

22545325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22545325 is a deficient number, since it is larger than the sum of its proper divisors (9366695).

22545325 is a wasteful number, since it uses less digits than its factorization.

22545325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 302 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 22545325 is about 4748.1917610813. The cubic root of 22545325 is about 282.5002479962.

Adding to 22545325 its reverse (52354522), we get a palindrome (74899847).

It can be divided in two parts, 2254 and 5325, that multiplied together give a triangular number (12002550 = T₄₈₉₉).

The spelling of 22545325 in words is "twenty-two million, five hundred forty-five thousand, three hundred twenty-five".