573211421 has 4 divisors (see below), whose sum is σ = 591702144. Its totient is φ = 554720700.

The previous prime is 573211417. The next prime is 573211459. The reversal of 573211421 is 124112375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 573211421 - 2² = 573211417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573211481) 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, 9245315 + ... + 9245376.

It is an arithmetic number, because the mean of its divisors is an integer number (147925536).

Almost surely, 2^573211421 is an apocalyptic number.

It is an amenable number.

573211421 is a deficient number, since it is larger than the sum of its proper divisors (18490723).

573211421 is a wasteful number, since it uses less digits than its factorization.

573211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18490722.

The product of its digits is 1680, while the sum is 26.

The square root of 573211421 is about 23941.8341193819. The cubic root of 573211421 is about 830.6886533156.

Adding to 573211421 its reverse (124112375), we get a palindrome (697323796).

The spelling of 573211421 in words is "five hundred seventy-three million, two hundred eleven thousand, four hundred twenty-one".