210512052 has 18 divisors (see below), whose sum is σ = 532127778. Its totient is φ = 70170672.

The previous prime is 210512021. The next prime is 210512087. The reversal of 210512052 is 250215012.

It can be written as a sum of positive squares in only one way, i.e., 198979236 + 11532816 = 14106^2 + 3396^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2923743 + ... + 2923814.

Almost surely, 2^210512052 is an apocalyptic number.

It is an amenable number.

210512052 is an abundant number, since it is smaller than the sum of its proper divisors (321615726).

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

210512052 is a wasteful number, since it uses less digits than its factorization.

210512052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847567 (or 5847562 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 210512052 is about 14509.0334619505. The cubic root of 210512052 is about 594.8749137988.

Adding to 210512052 its reverse (250215012), we get a palindrome (460727064).

The spelling of 210512052 in words is "two hundred ten million, five hundred twelve thousand, fifty-two".