16255220 has 12 divisors (see below), whose sum is σ = 34136004. Its totient is φ = 6502080.

The previous prime is 16255207. The next prime is 16255223. The reversal of 16255220 is 2255261.

It can be written as a sum of positive squares in 2 ways, for example, as 8976016 + 7279204 = 2996^2 + 2698^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16255223) 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 3 ways as a sum of consecutive naturals, for example, 406361 + ... + 406400.

It is an arithmetic number, because the mean of its divisors is an integer number (2844667).

Almost surely, 2^16255220 is an apocalyptic number.

16255220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16255220 is an abundant number, since it is smaller than the sum of its proper divisors (17880784).

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

16255220 is a wasteful number, since it uses less digits than its factorization.

16255220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812770 (or 812768 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 16255220 is about 4031.7762834761. The cubic root of 16255220 is about 253.3169695494.

The spelling of 16255220 in words is "sixteen million, two hundred fifty-five thousand, two hundred twenty".