549286656 has 72 divisors (see below), whose sum is σ = 1538886720. Its totient is φ = 173454336.

The previous prime is 549286649. The next prime is 549286663. The reversal of 549286656 is 656682945.

It is an interprime number because it is at equal distance from previous prime (549286649) and next prime (549286663).

It is a junction number, because it is equal to n+sod(n) for n = 549286599 and 549286608.

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, 4230 + ... + 33413.

Almost surely, 2^549286656 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 549286656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769443360).

549286656 is an abundant number, since it is smaller than the sum of its proper divisors (989600064).

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

549286656 is a wasteful number, since it uses less digits than its factorization.

549286656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37681 (or 37667 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The square root of 549286656 is about 23436.8653194065. The cubic root of 549286656 is about 818.9669004351.

The spelling of 549286656 in words is "five hundred forty-nine million, two hundred eighty-six thousand, six hundred fifty-six".