212525533 has 4 divisors (see below), whose sum is σ = 231846048. Its totient is φ = 193205020.

The previous prime is 212525531. The next prime is 212525549. The reversal of 212525533 is 335525212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212525533 - 2¹ = 212525531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212525531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9660241 + ... + 9660262.

It is an arithmetic number, because the mean of its divisors is an integer number (57961512).

Almost surely, 2^212525533 is an apocalyptic number.

It is an amenable number.

212525533 is a deficient number, since it is larger than the sum of its proper divisors (19320515).

212525533 is a wasteful number, since it uses less digits than its factorization.

212525533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19320514.

The product of its digits is 9000, while the sum is 28.

The square root of 212525533 is about 14578.2554854825. The cubic root of 212525533 is about 596.7654955605.

The spelling of 212525533 in words is "two hundred twelve million, five hundred twenty-five thousand, five hundred thirty-three".