5571994956 has 48 divisors (see below), whose sum is σ = 14529207168. Its totient is φ = 1647299200.

The previous prime is 5571994937. The next prime is 5571994969. The reversal of 5571994956 is 6594991755.

It is a self number, because there is not a number n which added to its sum of digits gives 5571994956.

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, 509370 + ... + 520193.

It is an arithmetic number, because the mean of its divisors is an integer number (302691816).

Almost surely, 2^5571994956 is an apocalyptic number.

It is an amenable number.

5571994956 is an abundant number, since it is smaller than the sum of its proper divisors (8957212212).

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

5571994956 is a wasteful number, since it uses less digits than its factorization.

5571994956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029622 (or 1029620 counting only the distinct ones).

The product of its digits is 15309000, while the sum is 60.

The square root of 5571994956 is about 74645.7966398645. The cubic root of 5571994956 is about 1772.8428419813.

The spelling of 5571994956 in words is "five billion, five hundred seventy-one million, nine hundred ninety-four thousand, nine hundred fifty-six".