555740 has 24 divisors (see below), whose sum is σ = 1200192. Its totient is φ = 216000.

The previous prime is 555739. The next prime is 555743. The reversal of 555740 is 47555.

555740 = T₁₀₅ + T₁₀₆ + ... + T₁₆₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (50008).

2⁵⁵⁵⁷⁴⁰ 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 555740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600096).

555740 is an abundant number, since it is smaller than the sum of its proper divisors (644452).

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

555740 is a wasteful number, since it uses less digits than its factorization.

555740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 555740 is about 745.4797113269. The cubic root of 555740 is about 82.2161657201.

The spelling of 555740 in words is "five hundred fifty-five thousand, seven hundred forty".