22245545 has 16 divisors (see below), whose sum is σ = 30595968. Its totient is φ = 15210240.

The previous prime is 22245533. The next prime is 22245557. The reversal of 22245545 is 54554222.

It is an interprime number because it is at equal distance from previous prime (22245533) and next prime (22245557).

It is not a de Polignac number, because 22245545 - 2¹⁶ = 22180009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15665 + ... + 17025.

It is an arithmetic number, because the mean of its divisors is an integer number (1912248).

Almost surely, 2^22245545 is an apocalyptic number.

It is an amenable number.

22245545 is a deficient number, since it is larger than the sum of its proper divisors (8350423).

22245545 is a wasteful number, since it uses less digits than its factorization.

22245545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840.

The product of its digits is 16000, while the sum is 29.

The square root of 22245545 is about 4716.5183133324. The cubic root of 22245545 is about 281.2425433414.

Adding to 22245545 its reverse (54554222), we get a palindrome (76799767).

The spelling of 22245545 in words is "twenty-two million, two hundred forty-five thousand, five hundred forty-five".