212563055 has 4 divisors (see below), whose sum is σ = 255075672. Its totient is φ = 170050440.

The previous prime is 212563007. The next prime is 212563081. The reversal of 212563055 is 550365212.

It is a happy number.

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

It is not a de Polignac number, because 212563055 - 2⁶ = 212562991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21256301 + ... + 21256310.

It is an arithmetic number, because the mean of its divisors is an integer number (63768918).

Almost surely, 2^212563055 is an apocalyptic number.

212563055 is a deficient number, since it is larger than the sum of its proper divisors (42512617).

212563055 is an equidigital number, since it uses as much as digits as its factorization.

212563055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42512616.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 212563055 is about 14579.5423453550. The cubic root of 212563055 is about 596.8006137209.

The spelling of 212563055 in words is "two hundred twelve million, five hundred sixty-three thousand, fifty-five".