555703668 has 72 divisors (see below), whose sum is σ = 1549698696. Its totient is φ = 166809600.

The previous prime is 555703661. The next prime is 555703669. The reversal of 555703668 is 866307555.

555703668 is a `hidden beast` number, since 5 + 557 + 0 + 36 + 68 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19873764 + 535829904 = 4458^2 + 23148^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555703661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4708 + ... + 33668.

It is an arithmetic number, because the mean of its divisors is an integer number (21523593).

Almost surely, 2^555703668 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 555703668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774849348).

555703668 is an abundant number, since it is smaller than the sum of its proper divisors (993995028).

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

555703668 is a wasteful number, since it uses less digits than its factorization.

555703668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29025 (or 29020 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 555703668 is about 23573.3677695827. The cubic root of 555703668 is about 822.1437402920.

The spelling of 555703668 in words is "five hundred fifty-five million, seven hundred three thousand, six hundred sixty-eight".