210125652 has 48 divisors (see below), whose sum is σ = 540195264. Its totient is φ = 63040000.

The previous prime is 210125639. The next prime is 210125681. The reversal of 210125652 is 256521012.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

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 15 ways as a sum of consecutive naturals, for example, 5452 + ... + 21212.

It is an arithmetic number, because the mean of its divisors is an integer number (11254068).

Almost surely, 2^210125652 is an apocalyptic number.

210125652 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 210125652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270097632).

210125652 is an abundant number, since it is smaller than the sum of its proper divisors (330069612).

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

210125652 is a wasteful number, since it uses less digits than its factorization.

210125652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15880 (or 15878 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 210125652 is about 14495.7115037517. The cubic root of 210125652 is about 594.5107217478.

Adding to 210125652 its reverse (256521012), we get a palindrome (466646664).

The spelling of 210125652 in words is "two hundred ten million, one hundred twenty-five thousand, six hundred fifty-two".