4441950521 has 4 divisors (see below), whose sum is σ = 4514769444. Its totient is φ = 4369131600.

The previous prime is 4441950517. The next prime is 4441950533. The reversal of 4441950521 is 1250591444.

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 401441296 + 4040509225 = 20036^2 + 63565^2 .

It is a cyclic number.

It is not a de Polignac number, because 4441950521 - 2² = 4441950517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4441950551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36409370 + ... + 36409491.

It is an arithmetic number, because the mean of its divisors is an integer number (1128692361).

Almost surely, 2^4441950521 is an apocalyptic number.

It is an amenable number.

4441950521 is a deficient number, since it is larger than the sum of its proper divisors (72818923).

4441950521 is an equidigital number, since it uses as much as digits as its factorization.

4441950521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72818922.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 4441950521 is about 66647.9596161803. The cubic root of 4441950521 is about 1643.8337981423.

The spelling of 4441950521 in words is "four billion, four hundred forty-one million, nine hundred fifty thousand, five hundred twenty-one".