22545553 has 8 divisors (see below), whose sum is σ = 24209280. Its totient is φ = 20919360.

The previous prime is 22545529. The next prime is 22545577. The reversal of 22545553 is 35554522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22545529) and next prime (22545577).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22545553 - 2⁵ = 22545521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22545503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8133 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (3026160).

Almost surely, 2^22545553 is an apocalyptic number.

It is an amenable number.

22545553 is a deficient number, since it is larger than the sum of its proper divisors (1663727).

22545553 is a wasteful number, since it uses less digits than its factorization.

22545553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18767.

The product of its digits is 30000, while the sum is 31.

The square root of 22545553 is about 4748.2157701604. The cubic root of 22545553 is about 282.5012002977.

The spelling of 22545553 in words is "twenty-two million, five hundred forty-five thousand, five hundred fifty-three".