5415233221 has 4 divisors (see below), whose sum is σ = 5489414572. Its totient is φ = 5341051872.

The previous prime is 5415233209. The next prime is 5415233269. The reversal of 5415233221 is 1223325145.

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 1073872900 + 4341360321 = 32770^2 + 65889^2 .

It is a cyclic number.

It is not a de Polignac number, because 5415233221 - 2⁹ = 5415232709 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 5415233221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5415236221) 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, 37090566 + ... + 37090711.

It is an arithmetic number, because the mean of its divisors is an integer number (1372353643).

Almost surely, 2^5415233221 is an apocalyptic number.

It is an amenable number.

5415233221 is a deficient number, since it is larger than the sum of its proper divisors (74181351).

5415233221 is an equidigital number, since it uses as much as digits as its factorization.

5415233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74181350.

The product of its digits is 7200, while the sum is 28.

The square root of 5415233221 is about 73588.2682293856. The cubic root of 5415233221 is about 1756.0588055166.

Adding to 5415233221 its reverse (1223325145), we get a palindrome (6638558366).

The spelling of 5415233221 in words is "five billion, four hundred fifteen million, two hundred thirty-three thousand, two hundred twenty-one".