508220109 has 16 divisors (see below), whose sum is σ = 753690240. Its totient is φ = 338466240.

The previous prime is 508220081. The next prime is 508220129. The reversal of 508220109 is 901022805.

It is not a de Polignac number, because 508220109 - 2¹³ = 508211917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508220129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18709 + ... + 36965.

It is an arithmetic number, because the mean of its divisors is an integer number (47105640).

Almost surely, 2^508220109 is an apocalyptic number.

It is an amenable number.

508220109 is a deficient number, since it is larger than the sum of its proper divisors (245470131).

508220109 is a wasteful number, since it uses less digits than its factorization.

508220109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19297 (or 19291 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 508220109 is about 22543.7376892121. The cubic root of 508220109 is about 798.0264421110.

The spelling of 508220109 in words is "five hundred eight million, two hundred twenty thousand, one hundred nine".