625404664330253 has 2 divisors, whose sum is σ = 625404664330254. Its totient is φ = 625404664330252.

The previous prime is 625404664330249. The next prime is 625404664330273. The reversal of 625404664330253 is 352033466404526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324979471132969 + 300425193197284 = 18027187^2 + 17332778^2 .

It is a cyclic number.

It is not a de Polignac number, because 625404664330253 - 2² = 625404664330249 is a prime.

It is a super-2 number, since 2×625404664330253² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 625404664330195 and 625404664330204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625404664330213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312702332165126 + 312702332165127.

It is an arithmetic number, because the mean of its divisors is an integer number (312702332165127).

Almost surely, 2^{625404664330253} is an apocalyptic number.

It is an amenable number.

625404664330253 is a deficient number, since it is larger than the sum of its proper divisors (1).

625404664330253 is an equidigital number, since it uses as much as digits as its factorization.

625404664330253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37324800, while the sum is 53.

The spelling of 625404664330253 in words is "six hundred twenty-five trillion, four hundred four billion, six hundred sixty-four million, three hundred thirty thousand, two hundred fifty-three".