212511053 has 4 divisors (see below), whose sum is σ = 221750688. Its totient is φ = 203271420.

The previous prime is 212511041. The next prime is 212511059. The reversal of 212511053 is 350115212.

It is a happy number.

212511053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212511053 - 2⁶ = 212510989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212511059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4619783 + ... + 4619828.

It is an arithmetic number, because the mean of its divisors is an integer number (55437672).

Almost surely, 2^212511053 is an apocalyptic number.

212511053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212511053 is a deficient number, since it is larger than the sum of its proper divisors (9239635).

212511053 is an equidigital number, since it uses as much as digits as its factorization.

212511053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239634.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 212511053 is about 14577.7588469559. The cubic root of 212511053 is about 596.7519421135.

Adding to 212511053 its reverse (350115212), we get a palindrome (562626265).

The spelling of 212511053 in words is "two hundred twelve million, five hundred eleven thousand, fifty-three".