6525774408 has 64 divisors (see below), whose sum is σ = 16809327360. Its totient is φ = 2110094336.

The previous prime is 6525774403. The next prime is 6525774413. The reversal of 6525774408 is 8044775256.

It is an interprime number because it is at equal distance from previous prime (6525774403) and next prime (6525774413).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6525774403) 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, 101866 + ... + 153062.

It is an arithmetic number, because the mean of its divisors is an integer number (262645740).

Almost surely, 2^6525774408 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 6525774408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8404663680).

6525774408 is an abundant number, since it is smaller than the sum of its proper divisors (10283552952).

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

6525774408 is a wasteful number, since it uses less digits than its factorization.

6525774408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51366 (or 51362 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 48.

The square root of 6525774408 is about 80782.2654299816. The cubic root of 6525774408 is about 1868.7190755046.

The spelling of 6525774408 in words is "six billion, five hundred twenty-five million, seven hundred seventy-four thousand, four hundred eight".