255030220 has 24 divisors (see below), whose sum is σ = 540573264. Its totient is φ = 101057856.

The previous prime is 255030197. The next prime is 255030229. The reversal of 255030220 is 22030552.

It is a super-2 number, since 2×255030220² = 130080826226496800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255030229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57447 + ... + 61726.

It is an arithmetic number, because the mean of its divisors is an integer number (22523886).

Almost surely, 2^255030220 is an apocalyptic number.

255030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255030220 is an abundant number, since it is smaller than the sum of its proper divisors (285543044).

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

255030220 is a wasteful number, since it uses less digits than its factorization.

255030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119289 (or 119287 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 255030220 is about 15969.6656195426. The cubic root of 255030220 is about 634.1576198579.

Adding to 255030220 its reverse (22030552), we get a palindrome (277060772).

The spelling of 255030220 in words is "two hundred fifty-five million, thirty thousand, two hundred twenty".