653206641 has 16 divisors (see below), whose sum is σ = 889437120. Its totient is φ = 426286080.

The previous prime is 653206637. The next prime is 653206649. The reversal of 653206641 is 146602356.

It is not a de Polignac number, because 653206641 - 2² = 653206637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (653206649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35001 + ... + 50313.

It is an arithmetic number, because the mean of its divisors is an integer number (55589820).

Almost surely, 2^653206641 is an apocalyptic number.

It is an amenable number.

653206641 is a deficient number, since it is larger than the sum of its proper divisors (236230479).

653206641 is a wasteful number, since it uses less digits than its factorization.

653206641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15616.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 653206641 is about 25557.9076021493. The cubic root of 653206641 is about 867.6612399783.

Adding to 653206641 its reverse (146602356), we get a palindrome (799808997).

The spelling of 653206641 in words is "six hundred fifty-three million, two hundred six thousand, six hundred forty-one".