212516500 has 48 divisors (see below), whose sum is σ = 530449920. Its totient is φ = 72861600.

The previous prime is 212516477. The next prime is 212516509. The reversal of 212516500 is 5615212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212516509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26860 + ... + 33859.

It is an arithmetic number, because the mean of its divisors is an integer number (11051040).

Almost surely, 2^212516500 is an apocalyptic number.

212516500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212516500 is an abundant number, since it is smaller than the sum of its proper divisors (317933420).

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

212516500 is a wasteful number, since it uses less digits than its factorization.

212516500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60745 (or 60733 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 212516500 is about 14577.9456714587. The cubic root of 212516500 is about 596.7570406405.

The spelling of 212516500 in words is "two hundred twelve million, five hundred sixteen thousand, five hundred".