6252013221 has 16 divisors (see below), whose sum is σ = 8480058048. Its totient is φ = 4096592000.

The previous prime is 6252013193. The next prime is 6252013253. The reversal of 6252013221 is 1223102526.

It is a cyclic number.

It is not a de Polignac number, because 6252013221 - 2⁷ = 6252013093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6252013191 and 6252013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6252013021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33795 + ... + 116816.

It is an arithmetic number, because the mean of its divisors is an integer number (530003628).

Almost surely, 2^6252013221 is an apocalyptic number.

It is an amenable number.

6252013221 is a deficient number, since it is larger than the sum of its proper divisors (2228044827).

6252013221 is a wasteful number, since it uses less digits than its factorization.

6252013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150852.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 6252013221 is about 79069.6732066094. The cubic root of 6252013221 is about 1842.2135086100.

Adding to 6252013221 its reverse (1223102526), we get a palindrome (7475115747).

The spelling of 6252013221 in words is "six billion, two hundred fifty-two million, thirteen thousand, two hundred twenty-one".