653553239 has 2 divisors, whose sum is σ = 653553240. Its totient is φ = 653553238.

The previous prime is 653553223. The next prime is 653553293. The reversal of 653553239 is 932355356.

Together with next prime (653553293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653553239 - 2⁴ = 653553223 is a prime.

It is a super-2 number, since 2×653553239² = 854263672414782242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 653553196 and 653553205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653553739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326776619 + 326776620.

It is an arithmetic number, because the mean of its divisors is an integer number (326776620).

Almost surely, 2^653553239 is an apocalyptic number.

653553239 is a deficient number, since it is larger than the sum of its proper divisors (1).

653553239 is an equidigital number, since it uses as much as digits as its factorization.

653553239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 364500, while the sum is 41.

The square root of 653553239 is about 25564.6873440690. The cubic root of 653553239 is about 867.8146760974.

The spelling of 653553239 in words is "six hundred fifty-three million, five hundred fifty-three thousand, two hundred thirty-nine".