441057521 has 4 divisors (see below), whose sum is σ = 443698752. Its totient is φ = 438416292.

The previous prime is 441057457. The next prime is 441057527. The reversal of 441057521 is 125750144.

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 441057521 - 2⁶ = 441057457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441057527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320365 + ... + 1320698.

It is an arithmetic number, because the mean of its divisors is an integer number (110924688).

Almost surely, 2^441057521 is an apocalyptic number.

It is an amenable number.

441057521 is a deficient number, since it is larger than the sum of its proper divisors (2641231).

441057521 is a wasteful number, since it uses less digits than its factorization.

441057521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641230.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 441057521 is about 21001.3695029634. The cubic root of 441057521 is about 761.1993534233.

The spelling of 441057521 in words is "four hundred forty-one million, fifty-seven thousand, five hundred twenty-one".