755540 has 24 divisors (see below), whose sum is σ = 1631112. Its totient is φ = 293760.

The previous prime is 755539. The next prime is 755551. The reversal of 755540 is 45557.

755540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 234256 + 521284 = 484^2 + 722^2 .

It is a nialpdrome in base 10 and base 16.

It is a congruent number.

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, 230 + ... + 1250.

It is an arithmetic number, because the mean of its divisors is an integer number (67963).

2⁷⁵⁵⁵⁴⁰ 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 755540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815556).

755540 is an abundant number, since it is smaller than the sum of its proper divisors (875572).

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

755540 is a wasteful number, since it uses less digits than its factorization.

755540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1065 counting only the distinct ones).

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

The square root of 755540 is about 869.2180393894. The cubic root of 755540 is about 91.0791888080.

The spelling of 755540 in words is "seven hundred fifty-five thousand, five hundred forty".