5627440321 has 4 divisors (see below), whose sum is σ = 5627591044. Its totient is φ = 5627289600.

The previous prime is 5627440319. The next prime is 5627440397. The reversal of 5627440321 is 1230447265.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1230447265 = 5 ⋅246089453.

It can be written as a sum of positive squares in 2 ways, for example, as 4664207025 + 963233296 = 68295^2 + 31036^2 .

It is a cyclic number.

It is not a de Polignac number, because 5627440321 - 2¹ = 5627440319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5627440921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26881 + ... + 109441.

It is an arithmetic number, because the mean of its divisors is an integer number (1406897761).

Almost surely, 2^5627440321 is an apocalyptic number.

It is an amenable number.

5627440321 is a deficient number, since it is larger than the sum of its proper divisors (150723).

5627440321 is an equidigital number, since it uses as much as digits as its factorization.

5627440321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150722.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 5627440321 is about 75016.2670425555. The cubic root of 5627440321 is about 1778.7037991044.

Adding to 5627440321 its reverse (1230447265), we get a palindrome (6857887586).

The spelling of 5627440321 in words is "five billion, six hundred twenty-seven million, four hundred forty thousand, three hundred twenty-one".