4524054221 has 4 divisors (see below), whose sum is σ = 4524291612. Its totient is φ = 4523816832.

The previous prime is 4524054187. The next prime is 4524054233. The reversal of 4524054221 is 1224504254.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2691015625 + 1833038596 = 51875^2 + 42814^2 .

It is a cyclic number.

It is not a de Polignac number, because 4524054221 - 2²² = 4519859917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4524054421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87350 + ... + 129143.

It is an arithmetic number, because the mean of its divisors is an integer number (1131072903).

Almost surely, 2^4524054221 is an apocalyptic number.

It is an amenable number.

4524054221 is a deficient number, since it is larger than the sum of its proper divisors (237391).

4524054221 is a wasteful number, since it uses less digits than its factorization.

4524054221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237390.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 4524054221 is about 67261.0899480524. The cubic root of 4524054221 is about 1653.9000758188.

Adding to 4524054221 its reverse (1224504254), we get a palindrome (5748558475).

The spelling of 4524054221 in words is "four billion, five hundred twenty-four million, fifty-four thousand, two hundred twenty-one".