656103253 has 16 divisors (see below), whose sum is σ = 749090160. Its totient is φ = 569281536.

The previous prime is 656103233. The next prime is 656103281. The reversal of 656103253 is 352301656.

It can be written as a sum of positive squares in 8 ways, for example, as 272844324 + 383258929 = 16518^2 + 19577^2 .

It is a cyclic number.

It is not a de Polignac number, because 656103253 - 2²⁵ = 622548821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656103223) 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 15 ways as a sum of consecutive naturals, for example, 243751 + ... + 246427.

It is an arithmetic number, because the mean of its divisors is an integer number (46818135).

Almost surely, 2^656103253 is an apocalyptic number.

It is an amenable number.

656103253 is a deficient number, since it is larger than the sum of its proper divisors (92986907).

656103253 is a wasteful number, since it uses less digits than its factorization.

656103253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 656103253 is about 25614.5125466014. The cubic root of 656103253 is about 868.9418822364.

The spelling of 656103253 in words is "six hundred fifty-six million, one hundred three thousand, two hundred fifty-three".