6525405936 has 240 divisors, whose sum is σ = 22222309824. Its totient is φ = 1744920576.

The previous prime is 6525405917. The next prime is 6525405937. The reversal of 6525405936 is 6395045256.

6525405936 is a `hidden beast` number, since 6 + 5 + 2 + 54 + 0 + 593 + 6 = 666.

It is a super-3 number, since 3×6525405936³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6525405891 and 6525405900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6525405937) 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, 3374826 + ... + 3376758.

Almost surely, 2^6525405936 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 6525405936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11111154912).

6525405936 is an abundant number, since it is smaller than the sum of its proper divisors (15696903888).

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

6525405936 is a wasteful number, since it uses less digits than its factorization.

6525405936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The square root of 6525405936 is about 80779.9847486987. The cubic root of 6525405936 is about 1868.6839029936.

The spelling of 6525405936 in words is "six billion, five hundred twenty-five million, four hundred five thousand, nine hundred thirty-six".