212052518 has 4 divisors (see below), whose sum is σ = 318078780. Its totient is φ = 106026258.

The previous prime is 212052497. The next prime is 212052527. The reversal of 212052518 is 815250212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 53013128 + ... + 53013131.

It is an arithmetic number, because the mean of its divisors is an integer number (79519695).

Almost surely, 2^212052518 is an apocalyptic number.

212052518 is a deficient number, since it is larger than the sum of its proper divisors (106026262).

212052518 is a wasteful number, since it uses less digits than its factorization.

212052518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106026261.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 212052518 is about 14562.0231424071. The cubic root of 212052518 is about 596.3224292495.

The spelling of 212052518 in words is "two hundred twelve million, fifty-two thousand, five hundred eighteen".