4521443401 has 4 divisors (see below), whose sum is σ = 4643644612. Its totient is φ = 4399242192.

The previous prime is 4521443393. The next prime is 4521443411. The reversal of 4521443401 is 1043441254.

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 3516490000 + 1004953401 = 59300^2 + 31701^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521443401 - 2³ = 4521443393 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 4521443401.

It is not an unprimeable number, because it can be changed into a prime (4521443411) 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, 61100550 + ... + 61100623.

It is an arithmetic number, because the mean of its divisors is an integer number (1160911153).

Almost surely, 2^4521443401 is an apocalyptic number.

It is an amenable number.

4521443401 is a deficient number, since it is larger than the sum of its proper divisors (122201211).

4521443401 is a wasteful number, since it uses less digits than its factorization.

4521443401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122201210.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4521443401 is about 67241.6790465556. The cubic root of 4521443401 is about 1653.5818607773.

Adding to 4521443401 its reverse (1043441254), we get a palindrome (5564884655).

The spelling of 4521443401 in words is "four billion, five hundred twenty-one million, four hundred forty-three thousand, four hundred one".