212566055 has 8 divisors (see below), whose sum is σ = 274700832. Its totient is φ = 156971808.

The previous prime is 212566037. The next prime is 212566063. The reversal of 212566055 is 550665212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212566055 - 2²⁰ = 211517479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635059 + ... + 1635188.

It is an arithmetic number, because the mean of its divisors is an integer number (34337604).

Almost surely, 2^212566055 is an apocalyptic number.

212566055 is a deficient number, since it is larger than the sum of its proper divisors (62134777).

212566055 is a wasteful number, since it uses less digits than its factorization.

212566055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270265.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 212566055 is about 14579.6452288799. The cubic root of 212566055 is about 596.8034213480.

The spelling of 212566055 in words is "two hundred twelve million, five hundred sixty-six thousand, fifty-five".