45553123221 has 8 divisors (see below), whose sum is σ = 60739846560. Its totient is φ = 30367574352.

The previous prime is 45553123207. The next prime is 45553123249. The reversal of 45553123221 is 12232135554.

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

It is not a de Polignac number, because 45553123221 - 2⁹ = 45553122709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45553123201) 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, 198735 + ... + 361388.

It is an arithmetic number, because the mean of its divisors is an integer number (7592480820).

Almost surely, 2^45553123221 is an apocalyptic number.

It is an amenable number.

45553123221 is a deficient number, since it is larger than the sum of its proper divisors (15186723339).

45553123221 is a wasteful number, since it uses less digits than its factorization.

45553123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587235.

The product of its digits is 36000, while the sum is 33.

Adding to 45553123221 its reverse (12232135554), we get a palindrome (57785258775).

The spelling of 45553123221 in words is "forty-five billion, five hundred fifty-three million, one hundred twenty-three thousand, two hundred twenty-one".