2153522808 has 64 divisors (see below), whose sum is σ = 6041296800. Its totient is φ = 710726400.

The previous prime is 2153522773. The next prime is 2153522831. The reversal of 2153522808 is 8082253512.

2153522808 is a `hidden beast` number, since 2 + 1 + 53 + 522 + 80 + 8 = 666.

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 15 ways as a sum of consecutive naturals, for example, 27541 + ... + 71172.

Almost surely, 2^2153522808 is an apocalyptic number.

It is an amenable number.

2153522808 is an abundant number, since it is smaller than the sum of its proper divisors (3887773992).

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

2153522808 is a wasteful number, since it uses less digits than its factorization.

2153522808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98829 (or 98819 counting only the distinct ones).

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

The square root of 2153522808 is about 46406.0643450832. The cubic root of 2153522808 is about 1291.3674196614.

The spelling of 2153522808 in words is "two billion, one hundred fifty-three million, five hundred twenty-two thousand, eight hundred eight".