22457545 has 32 divisors (see below), whose sum is σ = 31497984. Its totient is φ = 15206400.

The previous prime is 22457543. The next prime is 22457549. The reversal of 22457545 is 54575422.

It is not a de Polignac number, because 22457545 - 2¹ = 22457543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22457545.

It is not an unprimeable number, because it can be changed into a prime (22457543) 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 31 ways as a sum of consecutive naturals, for example, 51649 + ... + 52081.

It is an arithmetic number, because the mean of its divisors is an integer number (984312).

Almost surely, 2^22457545 is an apocalyptic number.

It is an amenable number.

22457545 is a deficient number, since it is larger than the sum of its proper divisors (9040439).

22457545 is a wasteful number, since it uses less digits than its factorization.

22457545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513.

The product of its digits is 56000, while the sum is 34.

The square root of 22457545 is about 4738.9392272955. The cubic root of 22457545 is about 282.1331338238.

The spelling of 22457545 in words is "twenty-two million, four hundred fifty-seven thousand, five hundred forty-five".