557227648 has 32 divisors (see below), whose sum is σ = 1118124000. Its totient is φ = 276600576.

The previous prime is 557227639. The next prime is 557227673. The reversal of 557227648 is 846722755.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×557227648² = 621005303391223808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557227598 and 557227607.

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, 2133 + ... + 33451.

It is an arithmetic number, because the mean of its divisors is an integer number (34941375).

Almost surely, 2^557227648 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 557227648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559062000).

557227648 is an abundant number, since it is smaller than the sum of its proper divisors (560896352).

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

557227648 is a wasteful number, since it uses less digits than its factorization.

557227648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31472 (or 31460 counting only the distinct ones).

The product of its digits is 940800, while the sum is 46.

The square root of 557227648 is about 23605.6698273953. The cubic root of 557227648 is about 822.8946123076.

The spelling of 557227648 in words is "five hundred fifty-seven million, two hundred twenty-seven thousand, six hundred forty-eight".