4542221455 has 4 divisors (see below), whose sum is σ = 5450665752. Its totient is φ = 3633777160.

The previous prime is 4542221441. The next prime is 4542221471. The reversal of 4542221455 is 5541222454.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4542221455 - 2²⁹ = 4005350543 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 4542221455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454222141 + ... + 454222150.

It is an arithmetic number, because the mean of its divisors is an integer number (1362666438).

Almost surely, 2^4542221455 is an apocalyptic number.

4542221455 is a deficient number, since it is larger than the sum of its proper divisors (908444297).

4542221455 is an equidigital number, since it uses as much as digits as its factorization.

4542221455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908444296.

The product of its digits is 64000, while the sum is 34.

The square root of 4542221455 is about 67396.0047406373. The cubic root of 4542221455 is about 1656.1109732502.

Subtracting 4542221455 from its reverse (5541222454), we obtain a palindrome (999000999).

The spelling of 4542221455 in words is "four billion, five hundred forty-two million, two hundred twenty-one thousand, four hundred fifty-five".