210225125 has 32 divisors (see below), whose sum is σ = 292391424. Its totient is φ = 149592000.

The previous prime is 210225109. The next prime is 210225131. The reversal of 210225125 is 521522012.

It is a happy number.

It is not a de Polignac number, because 210225125 - 2⁴ = 210225109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210225097 and 210225106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62999 + ... + 66251.

It is an arithmetic number, because the mean of its divisors is an integer number (9137232).

Almost surely, 2^210225125 is an apocalyptic number.

210225125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

210225125 is a deficient number, since it is larger than the sum of its proper divisors (82166299).

210225125 is a wasteful number, since it uses less digits than its factorization.

210225125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326 (or 3316 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 210225125 is about 14499.1422160071. The cubic root of 210225125 is about 594.6045202837.

Adding to 210225125 its reverse (521522012), we get a palindrome (731747137).

The spelling of 210225125 in words is "two hundred ten million, two hundred twenty-five thousand, one hundred twenty-five".