7021555852 has 12 divisors (see below), whose sum is σ = 12319808256. Its totient is φ = 3501610640.

The previous prime is 7021555843. The next prime is 7021555861. The reversal of 7021555852 is 2585551207.

It is an interprime number because it is at equal distance from previous prime (7021555843) and next prime (7021555861).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2290099 + ... + 2293162.

It is an arithmetic number, because the mean of its divisors is an integer number (1026650688).

Almost surely, 2^7021555852 is an apocalyptic number.

It is an amenable number.

7021555852 is a deficient number, since it is larger than the sum of its proper divisors (5298252404).

7021555852 is a wasteful number, since it uses less digits than its factorization.

7021555852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583648 (or 4583646 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 7021555852 is about 83794.7244878817. The cubic root of 7021555852 is about 1914.8927355063.

The spelling of 7021555852 in words is "seven billion, twenty-one million, five hundred fifty-five thousand, eight hundred fifty-two".