5665505520 has 40 divisors (see below), whose sum is σ = 17563067856. Its totient is φ = 1510801408.

The previous prime is 5665505513. The next prime is 5665505539. The reversal of 5665505520 is 255055665.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11802897 + ... + 11803376.

Almost surely, 2^5665505520 is an apocalyptic number.

It is an amenable number.

5665505520 is an abundant number, since it is smaller than the sum of its proper divisors (11897562336).

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

5665505520 is a wasteful number, since it uses less digits than its factorization.

5665505520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23606289 (or 23606283 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 39.

The square root of 5665505520 is about 75269.5524099885. The cubic root of 5665505520 is about 1782.7053001112.

The spelling of 5665505520 in words is "five billion, six hundred sixty-five million, five hundred five thousand, five hundred twenty".