218497053 has 8 divisors (see below), whose sum is σ = 293456448. Its totient is φ = 144601184.

The previous prime is 218497051. The next prime is 218497067. The reversal of 218497053 is 350794812.

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 218497053 - 2¹ = 218497051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218497051) 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, 265401 + ... + 266222.

It is an arithmetic number, because the mean of its divisors is an integer number (36682056).

Almost surely, 2^218497053 is an apocalyptic number.

It is an amenable number.

218497053 is a deficient number, since it is larger than the sum of its proper divisors (74959395).

218497053 is a wasteful number, since it uses less digits than its factorization.

218497053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531763.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 218497053 is about 14781.6458149964. The cubic root of 218497053 is about 602.3032333249.

The spelling of 218497053 in words is "two hundred eighteen million, four hundred ninety-seven thousand, fifty-three".