8053521408 has 66 divisors (see below), whose sum is σ = 23254394904. Its totient is φ = 2684504064.

The previous prime is 8053521373. The next prime is 8053521451. The reversal of 8053521408 is 8041253508.

It is a happy number.

8053521408 is a `hidden beast` number, since 80 + 53 + 521 + 4 + 0 + 8 = 666.

It is a super-2 number, since 2×8053521408² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427716 + ... + 446147.

Almost surely, 2^8053521408 is an apocalyptic number.

It is an amenable number.

8053521408 is an abundant number, since it is smaller than the sum of its proper divisors (15200873496).

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

8053521408 is a wasteful number, since it uses less digits than its factorization.

8053521408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873889 (or 873868 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 8053521408 is about 89741.4141185662. The cubic root of 8053521408 is about 2004.4502078141.

The spelling of 8053521408 in words is "eight billion, fifty-three million, five hundred twenty-one thousand, four hundred eight".