616560253 has 2 divisors, whose sum is σ = 616560254. Its totient is φ = 616560252.

The previous prime is 616560247. The next prime is 616560389. The reversal of 616560253 is 352065616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354832569 + 261727684 = 18837^2 + 16178^2 .

It is a cyclic number.

It is not a de Polignac number, because 616560253 - 2⁵ = 616560221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616560223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308280126 + 308280127.

It is an arithmetic number, because the mean of its divisors is an integer number (308280127).

Almost surely, 2^616560253 is an apocalyptic number.

It is an amenable number.

616560253 is a deficient number, since it is larger than the sum of its proper divisors (1).

616560253 is an equidigital number, since it uses as much as digits as its factorization.

616560253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 616560253 is about 24830.6313451753. The cubic root of 616560253 is about 851.1220489748.

The spelling of 616560253 in words is "six hundred sixteen million, five hundred sixty thousand, two hundred fifty-three".