4554752821 has 4 divisors (see below), whose sum is σ = 4612408000. Its totient is φ = 4497097644.

The previous prime is 4554752809. The next prime is 4554752833. The reversal of 4554752821 is 1282574554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4554752809) and next prime (4554752833).

It is a cyclic number.

It is not a de Polignac number, because 4554752821 - 2⁹ = 4554752309 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 (4554752801) 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, 28827471 + ... + 28827628.

It is an arithmetic number, because the mean of its divisors is an integer number (1153102000).

Almost surely, 2^4554752821 is an apocalyptic number.

It is an amenable number.

4554752821 is a deficient number, since it is larger than the sum of its proper divisors (57655179).

4554752821 is an equidigital number, since it uses as much as digits as its factorization.

4554752821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57655178.

The product of its digits is 448000, while the sum is 43.

The square root of 4554752821 is about 67488.9088739772. The cubic root of 4554752821 is about 1657.6325691585.

The spelling of 4554752821 in words is "four billion, five hundred fifty-four million, seven hundred fifty-two thousand, eight hundred twenty-one".