22551545 has 8 divisors (see below), whose sum is σ = 27093696. Its totient is φ = 18020016.

The previous prime is 22551533. The next prime is 22551559. The reversal of 22551545 is 54515522.

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 22551545 - 2⁸ = 22551289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3194 + ... + 7436.

It is an arithmetic number, because the mean of its divisors is an integer number (3386712).

Almost surely, 2^22551545 is an apocalyptic number.

It is an amenable number.

22551545 is a deficient number, since it is larger than the sum of its proper divisors (4542151).

22551545 is a wasteful number, since it uses less digits than its factorization.

22551545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its digits is 10000, while the sum is 29.

The square root of 22551545 is about 4748.8467020952. The cubic root of 22551545 is about 282.5262251478.

The spelling of 22551545 in words is "twenty-two million, five hundred fifty-one thousand, five hundred forty-five".