6221256752 has 40 divisors (see below), whose sum is σ = 12583885056. Its totient is φ = 2973934656.

The previous prime is 6221256739. The next prime is 6221256761. The reversal of 6221256752 is 2576521226.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435613 + ... + 1439939.

Almost surely, 2^6221256752 is an apocalyptic number.

It is an amenable number.

6221256752 is an abundant number, since it is smaller than the sum of its proper divisors (6362628304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6221256752 is a wasteful number, since it uses less digits than its factorization.

6221256752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265 (or 8259 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 6221256752 is about 78874.9437527533. The cubic root of 6221256752 is about 1839.1876486499.

Adding to 6221256752 its reverse (2576521226), we get a palindrome (8797777978).

The spelling of 6221256752 in words is "six billion, two hundred twenty-one million, two hundred fifty-six thousand, seven hundred fifty-two".