212028525 has 36 divisors (see below), whose sum is σ = 383359392. Its totient is φ = 112012320.

The previous prime is 212028521. The next prime is 212028529. The reversal of 212028525 is 525820212.

212028525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212028521) and next prime (212028529).

It is not a de Polignac number, because 212028525 - 2² = 212028521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212028521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19672 + ... + 28478.

It is an arithmetic number, because the mean of its divisors is an integer number (10648872).

Almost surely, 2^212028525 is an apocalyptic number.

212028525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212028525 is a deficient number, since it is larger than the sum of its proper divisors (171330867).

212028525 is a wasteful number, since it uses less digits than its factorization.

212028525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8930 (or 8922 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 212028525 is about 14561.1992981348. The cubic root of 212028525 is about 596.2999378029.

Adding to 212028525 its reverse (525820212), we get a palindrome (737848737).

The spelling of 212028525 in words is "two hundred twelve million, twenty-eight thousand, five hundred twenty-five".