6755721552 has 60 divisors (see below), whose sum is σ = 19728674784. Its totient is φ = 2153997120.

The previous prime is 6755721551. The next prime is 6755721569. The reversal of 6755721552 is 2551275576.

6755721552 is a `hidden beast` number, since 6 + 75 + 5 + 7 + 21 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6755721498 and 6755721507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6755721551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016574 + ... + 1023197.

Almost surely, 2^6755721552 is an apocalyptic number.

It is an amenable number.

6755721552 is an abundant number, since it is smaller than the sum of its proper divisors (12972953232).

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

6755721552 is a wasteful number, since it uses less digits than its factorization.

6755721552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039808 (or 2039799 counting only the distinct ones).

The product of its digits is 735000, while the sum is 45.

The square root of 6755721552 is about 82193.1965067669. The cubic root of 6755721552 is about 1890.4154020995.

The spelling of 6755721552 in words is "six billion, seven hundred fifty-five million, seven hundred twenty-one thousand, five hundred fifty-two".