212255553 has 8 divisors (see below), whose sum is σ = 292766400. Its totient is φ = 136624208.

The previous prime is 212255521. The next prime is 212255573. The reversal of 212255553 is 355552212.

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 212255553 - 2⁵ = 212255521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212255553.

It is not an unprimeable number, because it can be changed into a prime (212255573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219773 + ... + 1219946.

It is an arithmetic number, because the mean of its divisors is an integer number (36595800).

Almost surely, 2^212255553 is an apocalyptic number.

It is an amenable number.

212255553 is a deficient number, since it is larger than the sum of its proper divisors (80510847).

212255553 is a wasteful number, since it uses less digits than its factorization.

212255553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439751.

The product of its digits is 15000, while the sum is 30.

The square root of 212255553 is about 14568.9928615536. The cubic root of 212255553 is about 596.5126898262.

It can be divided in two parts, 2122 and 55553, that added together give a palindrome (57675).

The spelling of 212255553 in words is "two hundred twelve million, two hundred fifty-five thousand, five hundred fifty-three".