212550520 has 64 divisors (see below), whose sum is σ = 588611520. Its totient is φ = 67267584.

The previous prime is 212550517. The next prime is 212550553. The reversal of 212550520 is 25055212.

212550520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212550491 and 212550500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25557 + ... + 32836.

It is an arithmetic number, because the mean of its divisors is an integer number (9197055).

Almost surely, 2^212550520 is an apocalyptic number.

212550520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212550520 is an abundant number, since it is smaller than the sum of its proper divisors (376061000).

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

212550520 is a wasteful number, since it uses less digits than its factorization.

212550520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58424 (or 58420 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 212550520 is about 14579.1124558390. The cubic root of 212550520 is about 596.7888822329.

The spelling of 212550520 in words is "two hundred twelve million, five hundred fifty thousand, five hundred twenty".