2421326533 has 4 divisors (see below), whose sum is σ = 2423884320. Its totient is φ = 2418768748.

The previous prime is 2421326477. The next prime is 2421326543. The reversal of 2421326533 is 3356231242.

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 2421326533 - 2¹⁷ = 2421195461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2421326495 and 2421326504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421326543) 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, 1277473 + ... + 1279366.

It is an arithmetic number, because the mean of its divisors is an integer number (605971080).

Almost surely, 2^2421326533 is an apocalyptic number.

It is an amenable number.

2421326533 is a deficient number, since it is larger than the sum of its proper divisors (2557787).

2421326533 is an equidigital number, since it uses as much as digits as its factorization.

2421326533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557786.

The product of its digits is 25920, while the sum is 31.

The square root of 2421326533 is about 49206.9764667572. The cubic root of 2421326533 is about 1342.8199567291.

Adding to 2421326533 its reverse (3356231242), we get a palindrome (5777557775).

The spelling of 2421326533 in words is "two billion, four hundred twenty-one million, three hundred twenty-six thousand, five hundred thirty-three".