6530221752 has 16 divisors (see below), whose sum is σ = 16325554440. Its totient is φ = 2176740576.

The previous prime is 6530221729. The next prime is 6530221771. The reversal of 6530221752 is 2571220356.

It is a super-2 number, since 2×6530221752² = 85287592260587899008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136046263 + ... + 136046310.

Almost surely, 2^6530221752 is an apocalyptic number.

It is an amenable number.

6530221752 is an abundant number, since it is smaller than the sum of its proper divisors (9795332688).

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

6530221752 is a wasteful number, since it uses less digits than its factorization.

6530221752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272092582 (or 272092578 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 6530221752 is about 80809.7874765180. The cubic root of 6530221752 is about 1869.1434925319.

The spelling of 6530221752 in words is "six billion, five hundred thirty million, two hundred twenty-one thousand, seven hundred fifty-two".