212523532 has 24 divisors (see below), whose sum is σ = 402939936. Its totient is φ = 97496448.

The previous prime is 212523499. The next prime is 212523551. The reversal of 212523532 is 235325212.

It is a junction number, because it is equal to n+sod(n) for n = 212523497 and 212523506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3553 + ... + 20920.

It is an arithmetic number, because the mean of its divisors is an integer number (16789164).

Almost surely, 2^212523532 is an apocalyptic number.

It is an amenable number.

212523532 is a deficient number, since it is larger than the sum of its proper divisors (190416404).

212523532 is a wasteful number, since it uses less digits than its factorization.

212523532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24657 (or 24655 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 212523532 is about 14578.1868557101. The cubic root of 212523532 is about 596.7636226380.

Adding to 212523532 its reverse (235325212), we get a palindrome (447848744).

The spelling of 212523532 in words is "two hundred twelve million, five hundred twenty-three thousand, five hundred thirty-two".