4054244521 has 4 divisors (see below), whose sum is σ = 4076643844. Its totient is φ = 4031845200.

The previous prime is 4054244489. The next prime is 4054244527. The reversal of 4054244521 is 1254424504.

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 1329404521 + 2724840000 = 36461^2 + 52200^2 .

It is a cyclic number.

It is not a de Polignac number, because 4054244521 - 2⁵ = 4054244489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4054244527) 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, 11199390 + ... + 11199751.

It is an arithmetic number, because the mean of its divisors is an integer number (1019160961).

Almost surely, 2^4054244521 is an apocalyptic number.

It is an amenable number.

4054244521 is a deficient number, since it is larger than the sum of its proper divisors (22399323).

4054244521 is a wasteful number, since it uses less digits than its factorization.

4054244521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22399322.

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 4054244521 is about 63672.9496803784. The cubic root of 4054244521 is about 1594.5445083202.

The spelling of 4054244521 in words is "four billion, fifty-four million, two hundred forty-four thousand, five hundred twenty-one".