755220 has 48 divisors (see below), whose sum is σ = 2173248. Its totient is φ = 195840.

The previous prime is 755213. The next prime is 755233. The reversal of 755220 is 22557.

It is a nialpdrome in base 10 and base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307 + ... + 2613.

It is an arithmetic number, because the mean of its divisors is an integer number (45276).

2⁷⁵⁵²²⁰ 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 755220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086624).

755220 is an abundant number, since it is smaller than the sum of its proper divisors (1418028).

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

755220 is a wasteful number, since it uses less digits than its factorization.

755220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 755220 is about 869.0339464026. The cubic root of 755220 is about 91.0663284890.

Adding to 755220 its reverse (22557), we get a palindrome (777777).

The spelling of 755220 in words is "seven hundred fifty-five thousand, two hundred twenty".