5561687448 has 160 divisors (see below), whose sum is σ = 16570369200. Its totient is φ = 1737842688.

The previous prime is 5561687437. The next prime is 5561687491. The reversal of 5561687448 is 8447861655.

5561687448 is a `hidden beast` number, since 5 + 561 + 6 + 8 + 74 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 5561687394 and 5561687403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1191936 + ... + 1196592.

Almost surely, 2^5561687448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561687448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8285184600).

5561687448 is an abundant number, since it is smaller than the sum of its proper divisors (11008681752).

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

5561687448 is a wasteful number, since it uses less digits than its factorization.

5561687448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791 (or 4778 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 5561687448 is about 74576.7218909493. The cubic root of 5561687448 is about 1771.7489865199.

The spelling of 5561687448 in words is "five billion, five hundred sixty-one million, six hundred eighty-seven thousand, four hundred forty-eight".