212553207 has 8 divisors (see below), whose sum is σ = 314893680. Its totient is φ = 141702120.

The previous prime is 212553199. The next prime is 212553221. The reversal of 212553207 is 702355212.

212553207 is a `hidden beast` number, since 2 + 125 + 532 + 0 + 7 = 666.

It is not a de Polignac number, because 212553207 - 2³ = 212553199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 7872341 = 212553207 / (2 + 1 + 2 + 5 + 5 + 3 + 2 + 0 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212553007) 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, 3936144 + ... + 3936197.

It is an arithmetic number, because the mean of its divisors is an integer number (39361710).

Almost surely, 2^212553207 is an apocalyptic number.

212553207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

212553207 is a deficient number, since it is larger than the sum of its proper divisors (102340473).

212553207 is an equidigital number, since it uses as much as digits as its factorization.

212553207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872350 (or 7872344 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 212553207 is about 14579.2046079339. The cubic root of 212553207 is about 596.7913970311.

The spelling of 212553207 in words is "two hundred twelve million, five hundred fifty-three thousand, two hundred seven".