213055547 has 8 divisors (see below), whose sum is σ = 221886000. Its totient is φ = 204324064.

The previous prime is 213055541. The next prime is 213055589. The reversal of 213055547 is 745550312.

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 213055547 - 2⁶ = 213055483 is a prime.

It is a super-2 number, since 2×213055547² = 90785332214938418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213055541) 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, 20333 + ... + 28974.

It is an arithmetic number, because the mean of its divisors is an integer number (27735750).

Almost surely, 2^213055547 is an apocalyptic number.

213055547 is a deficient number, since it is larger than the sum of its proper divisors (8830453).

213055547 is a wasteful number, since it uses less digits than its factorization.

213055547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49485.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 213055547 is about 14596.4224041373. The cubic root of 213055547 is about 597.2611716847.

The spelling of 213055547 in words is "two hundred thirteen million, fifty-five thousand, five hundred forty-seven".