5561172984 has 32 divisors (see below), whose sum is σ = 13905227520. Its totient is φ = 1853418336.

The previous prime is 5561172959. The next prime is 5561172997. The reversal of 5561172984 is 4892711655.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165777 + ... + 196479.

It is an arithmetic number, because the mean of its divisors is an integer number (434538360).

Almost surely, 2^5561172984 is an apocalyptic number.

It is an amenable number.

5561172984 is an abundant number, since it is smaller than the sum of its proper divisors (8344054536).

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

5561172984 is a wasteful number, since it uses less digits than its factorization.

5561172984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38259 (or 38255 counting only the distinct ones).

The product of its digits is 604800, while the sum is 48.

The square root of 5561172984 is about 74573.2725847538. The cubic root of 5561172984 is about 1771.6943550683.

The spelling of 5561172984 in words is "five billion, five hundred sixty-one million, one hundred seventy-two thousand, nine hundred eighty-four".