22025745 has 48 divisors (see below), whose sum is σ = 44553600. Its totient is φ = 10061856.

The previous prime is 22025741. The next prime is 22025747. The reversal of 22025745 is 54752022.

It is not a de Polignac number, because 22025745 - 2² = 22025741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22025741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14722 + ... + 16148.

It is an arithmetic number, because the mean of its divisors is an integer number (928200).

Almost surely, 2^22025745 is an apocalyptic number.

It is an amenable number.

22025745 is an abundant number, since it is smaller than the sum of its proper divisors (22527855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22025745 is a wasteful number, since it uses less digits than its factorization.

22025745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22025745 is about 4693.1593836136. The cubic root of 22025745 is about 280.3131912191.

Adding to 22025745 its reverse (54752022), we get a palindrome (76777767).

The spelling of 22025745 in words is "twenty-two million, twenty-five thousand, seven hundred forty-five".