213055503 has 8 divisors (see below), whose sum is σ = 284506416. Its totient is φ = 141820800.

The previous prime is 213055499. The next prime is 213055541. The reversal of 213055503 is 305550312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213055503 - 2² = 213055499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213055103) 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, 51738 + ... + 55703.

It is an arithmetic number, because the mean of its divisors is an integer number (35563302).

Almost surely, 2^213055503 is an apocalyptic number.

213055503 is a deficient number, since it is larger than the sum of its proper divisors (71450913).

213055503 is a wasteful number, since it uses less digits than its factorization.

213055503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108105.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 213055503 is about 14596.4208969185. The cubic root of 213055503 is about 597.2611305695.

The spelling of 213055503 in words is "two hundred thirteen million, fifty-five thousand, five hundred three".