5251445321 has 8 divisors (see below), whose sum is σ = 5528716320. Its totient is φ = 4974262272.

The previous prime is 5251445293. The next prime is 5251445341. The reversal of 5251445321 is 1235441525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5251445321 - 2¹⁴ = 5251428937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5251445341) 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 7 ways as a sum of consecutive naturals, for example, 126281 + ... + 162633.

It is an arithmetic number, because the mean of its divisors is an integer number (691089540).

Almost surely, 2^5251445321 is an apocalyptic number.

It is an amenable number.

5251445321 is a deficient number, since it is larger than the sum of its proper divisors (277270999).

5251445321 is a wasteful number, since it uses less digits than its factorization.

5251445321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43975.

The product of its digits is 24000, while the sum is 32.

The square root of 5251445321 is about 72466.8567070492. The cubic root of 5251445321 is about 1738.1727990573.

Adding to 5251445321 its reverse (1235441525), we get a palindrome (6486886846).

The spelling of 5251445321 in words is "five billion, two hundred fifty-one million, four hundred forty-five thousand, three hundred twenty-one".