573243251 has 4 divisors (see below), whose sum is σ = 655135152. Its totient is φ = 491351352.

The previous prime is 573243241. The next prime is 573243259. The reversal of 573243251 is 152342375.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 573243251 - 2¹⁴ = 573226867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (573243259) 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, 40945940 + ... + 40945953.

It is an arithmetic number, because the mean of its divisors is an integer number (163783788).

Almost surely, 2^573243251 is an apocalyptic number.

573243251 is a deficient number, since it is larger than the sum of its proper divisors (81891901).

573243251 is an equidigital number, since it uses as much as digits as its factorization.

573243251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81891900.

The product of its digits is 25200, while the sum is 32.

The square root of 573243251 is about 23942.4988461940. The cubic root of 573243251 is about 830.7040288702.

The spelling of 573243251 in words is "five hundred seventy-three million, two hundred forty-three thousand, two hundred fifty-one".