210552030 has 144 divisors (see below), whose sum is σ = 602933760. Its totient is φ = 50948352.

The previous prime is 210552019. The next prime is 210552071. The reversal of 210552030 is 30255012.

It is a happy number.

210552030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 210551994 and 210552012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1657827 + ... + 1657953.

It is an arithmetic number, because the mean of its divisors is an integer number (4187040).

Almost surely, 2^210552030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210552030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301466880).

210552030 is an abundant number, since it is smaller than the sum of its proper divisors (392381730).

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

210552030 is a wasteful number, since it uses less digits than its factorization.

210552030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 210552030 is about 14510.4110899726. The cubic root of 210552030 is about 594.9125686564.

The spelling of 210552030 in words is "two hundred ten million, five hundred fifty-two thousand, thirty".