5561217528 has 16 divisors (see below), whose sum is σ = 13903043880. Its totient is φ = 1853739168.

The previous prime is 5561217527. The next prime is 5561217539. The reversal of 5561217528 is 8257121655.

It is a self number, because there is not a number n which added to its sum of digits gives 5561217528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561217527) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115858675 + ... + 115858722.

Almost surely, 2^5561217528 is an apocalyptic number.

It is an amenable number.

5561217528 is an abundant number, since it is smaller than the sum of its proper divisors (8341826352).

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

5561217528 is a wasteful number, since it uses less digits than its factorization.

5561217528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231717406 (or 231717402 counting only the distinct ones).

The product of its digits is 168000, while the sum is 42.

The square root of 5561217528 is about 74573.5712434372. The cubic root of 5561217528 is about 1771.6990853738.

The spelling of 5561217528 in words is "five billion, five hundred sixty-one million, two hundred seventeen thousand, five hundred twenty-eight".