6395355252 has 144 divisors (see below), whose sum is σ = 19818384768. Its totient is φ = 1711100160.

The previous prime is 6395355191. The next prime is 6395355257. The reversal of 6395355252 is 2525535936.

6395355252 is a `hidden beast` number, since 6 + 3 + 95 + 3 + 552 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6395355198 and 6395355207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6395355257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91398 + ... + 145410.

It is an arithmetic number, because the mean of its divisors is an integer number (137627672).

Almost surely, 2^6395355252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6395355252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9909192384).

6395355252 is an abundant number, since it is smaller than the sum of its proper divisors (13423029516).

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

6395355252 is a wasteful number, since it uses less digits than its factorization.

6395355252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54070 (or 54065 counting only the distinct ones).

The product of its digits is 1215000, while the sum is 45.

The square root of 6395355252 is about 79970.9650560752. The cubic root of 6395355252 is about 1856.1862786955.

The spelling of 6395355252 in words is "six billion, three hundred ninety-five million, three hundred fifty-five thousand, two hundred fifty-two".