755315220 has 48 divisors (see below), whose sum is σ = 2307146688. Its totient is φ = 183106560.

The previous prime is 755315213. The next prime is 755315257. The reversal of 755315220 is 22513557.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 571549 + ... + 572868.

It is an arithmetic number, because the mean of its divisors is an integer number (48065556).

Almost surely, 2^755315220 is an apocalyptic number.

It is an amenable number.

755315220 is an abundant number, since it is smaller than the sum of its proper divisors (1551831468).

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

755315220 is a wasteful number, since it uses less digits than its factorization.

755315220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144440 (or 1144438 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 755315220 is about 27482.9987446785. The cubic root of 755315220 is about 910.7015561729.

Adding to 755315220 its reverse (22513557), we get a palindrome (777828777).

The spelling of 755315220 in words is "seven hundred fifty-five million, three hundred fifteen thousand, two hundred twenty".