6552021870 has 24 divisors (see below), whose sum is σ = 17035257096. Its totient is φ = 1747205808.

The previous prime is 6552021863. The next prime is 6552021893. The reversal of 6552021870 is 781202556.

It is a happy number.

6552021870 is a `hidden beast` number, since 6 + 552 + 0 + 21 + 87 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36400032 + ... + 36400211.

It is an arithmetic number, because the mean of its divisors is an integer number (709802379).

Almost surely, 2^6552021870 is an apocalyptic number.

6552021870 is an abundant number, since it is smaller than the sum of its proper divisors (10483235226).

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

6552021870 is a wasteful number, since it uses less digits than its factorization.

6552021870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72800256 (or 72800253 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 6552021870 is about 80944.5604719675. The cubic root of 6552021870 is about 1871.2211294563.

The spelling of 6552021870 in words is "six billion, five hundred fifty-two million, twenty-one thousand, eight hundred seventy".