219255652 has 48 divisors (see below), whose sum is σ = 484485120. Its totient is φ = 84333600.

The previous prime is 219255601. The next prime is 219255661. The reversal of 219255652 is 256552912.

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, 19827 + ... + 28837.

It is an arithmetic number, because the mean of its divisors is an integer number (10093440).

Almost surely, 2^219255652 is an apocalyptic number.

219255652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219255652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242242560).

219255652 is an abundant number, since it is smaller than the sum of its proper divisors (265229468).

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

219255652 is a wasteful number, since it uses less digits than its factorization.

219255652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112 (or 9110 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The square root of 219255652 is about 14807.2837482099. The cubic root of 219255652 is about 602.9994728765. Note that the first 3 decimals are identical.

The spelling of 219255652 in words is "two hundred nineteen million, two hundred fifty-five thousand, six hundred fifty-two".