210255252 has 48 divisors (see below), whose sum is σ = 530530560. Its totient is φ = 64556032.

The previous prime is 210255247. The next prime is 210255263. The reversal of 210255252 is 252552012.

It is a congruent number.

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, 1377 + ... + 20552.

It is an arithmetic number, because the mean of its divisors is an integer number (11052720).

Almost surely, 2^210255252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210255252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265265280).

210255252 is an abundant number, since it is smaller than the sum of its proper divisors (320275308).

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

210255252 is a wasteful number, since it uses less digits than its factorization.

210255252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22000 (or 21998 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 210255252 is about 14500.1811023173. The cubic root of 210255252 is about 594.6329228430.

The spelling of 210255252 in words is "two hundred ten million, two hundred fifty-five thousand, two hundred fifty-two".