218553052 has 12 divisors (see below), whose sum is σ = 387855216. Its totient is φ = 107737280.

The previous prime is 218552987. The next prime is 218553059. The reversal of 218553052 is 250355812.

218553052 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

218553052 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218553059) 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, 384493 + ... + 385060.

It is an arithmetic number, because the mean of its divisors is an integer number (32321268).

Almost surely, 2^218553052 is an apocalyptic number.

It is an amenable number.

218553052 is a deficient number, since it is larger than the sum of its proper divisors (169302164).

218553052 is a wasteful number, since it uses less digits than its factorization.

218553052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769628 (or 769626 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 218553052 is about 14783.5399008492. The cubic root of 218553052 is about 602.3546840535.

The spelling of 218553052 in words is "two hundred eighteen million, five hundred fifty-three thousand, fifty-two".