653323357 has 6 divisors (see below), whose sum is σ = 675079134. Its totient is φ = 632247480.

The previous prime is 653323313. The next prime is 653323373. The reversal of 653323357 is 753323356.

It can be written as a sum of positive squares in only one way, i.e., 407272761 + 246050596 = 20181^2 + 15686^2 .

It is a de Polignac number, because none of the positive numbers 2^k-653323357 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 (653323157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338958 + ... + 340879.

It is an arithmetic number, because the mean of its divisors is an integer number (112513189).

Almost surely, 2^653323357 is an apocalyptic number.

It is an amenable number.

653323357 is a deficient number, since it is larger than the sum of its proper divisors (21755777).

653323357 is an equidigital number, since it uses as much as digits as its factorization.

653323357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679899 (or 679868 counting only the distinct ones).

The product of its digits is 170100, while the sum is 37.

The square root of 653323357 is about 25560.1908639196. The cubic root of 653323357 is about 867.7129152633.

Subtracting 653323357 from its reverse (753323356), we obtain a palindrome (99999999).

It can be divided in two parts, 6533 and 23357, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 653323357 in words is "six hundred fifty-three million, three hundred twenty-three thousand, three hundred fifty-seven".