4054568581 has 4 divisors (see below), whose sum is σ = 4633792672. Its totient is φ = 3475344492.

The previous prime is 4054568549. The next prime is 4054568591. The reversal of 4054568581 is 1858654504.

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 a cyclic number.

It is not a de Polignac number, because 4054568581 - 2⁵ = 4054568549 is a prime.

It is a super-2 number, since 2×4054568581² = 32879052756064707122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4054568591) 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, 289612035 + ... + 289612048.

It is an arithmetic number, because the mean of its divisors is an integer number (1158448168).

Almost surely, 2^4054568581 is an apocalyptic number.

It is an amenable number.

4054568581 is a deficient number, since it is larger than the sum of its proper divisors (579224091).

4054568581 is an equidigital number, since it uses as much as digits as its factorization.

4054568581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579224090.

The product of its (nonzero) digits is 768000, while the sum is 46.

The square root of 4054568581 is about 63675.4943522231. The cubic root of 4054568581 is about 1594.5869917244.

The spelling of 4054568581 in words is "four billion, fifty-four million, five hundred sixty-eight thousand, five hundred eighty-one".