653020241 has 4 divisors (see below), whose sum is σ = 661286400. Its totient is φ = 644754084.

The previous prime is 653020229. The next prime is 653020271. The reversal of 653020241 is 142020356.

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 a de Polignac number, because none of the positive numbers 2^k-653020241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653020211) 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, 4132961 + ... + 4133118.

It is an arithmetic number, because the mean of its divisors is an integer number (165321600).

Almost surely, 2^653020241 is an apocalyptic number.

It is an amenable number.

653020241 is a deficient number, since it is larger than the sum of its proper divisors (8266159).

653020241 is an equidigital number, since it uses as much as digits as its factorization.

653020241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8266158.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 653020241 is about 25554.2607210618. The cubic root of 653020241 is about 867.5786997674.

Adding to 653020241 its reverse (142020356), we get a palindrome (795040597).

The spelling of 653020241 in words is "six hundred fifty-three million, twenty thousand, two hundred forty-one".