6221241533 has 4 divisors (see below), whose sum is σ = 6699798588. Its totient is φ = 5742684480.

The previous prime is 6221241491. The next prime is 6221241553. The reversal of 6221241533 is 3351421226.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3351421226 = 2 ⋅1675710613.

It can be written as a sum of positive squares in 2 ways, for example, as 3395043289 + 2826198244 = 58267^2 + 53162^2 .

It is not a de Polignac number, because 6221241533 - 2¹² = 6221237437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6221241496 and 6221241505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221241553) 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, 239278508 + ... + 239278533.

It is an arithmetic number, because the mean of its divisors is an integer number (1674949647).

Almost surely, 2^6221241533 is an apocalyptic number.

It is an amenable number.

6221241533 is a deficient number, since it is larger than the sum of its proper divisors (478557055).

6221241533 is a wasteful number, since it uses less digits than its factorization.

6221241533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478557054.

The product of its digits is 8640, while the sum is 29.

The square root of 6221241533 is about 78874.8472771897. The cubic root of 6221241533 is about 1839.1861489197.

Adding to 6221241533 its reverse (3351421226), we get a palindrome (9572662759).

The spelling of 6221241533 in words is "six billion, two hundred twenty-one million, two hundred forty-one thousand, five hundred thirty-three".