561676253 has 2 divisors, whose sum is σ = 561676254. Its totient is φ = 561676252.

The previous prime is 561676249. The next prime is 561676301. The reversal of 561676253 is 352676165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 361114009 + 200562244 = 19003^2 + 14162^2 .

It is a cyclic number.

It is not a de Polignac number, because 561676253 - 2² = 561676249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561676253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561676153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280838126 + 280838127.

It is an arithmetic number, because the mean of its divisors is an integer number (280838127).

Almost surely, 2^561676253 is an apocalyptic number.

It is an amenable number.

561676253 is a deficient number, since it is larger than the sum of its proper divisors (1).

561676253 is an equidigital number, since it uses as much as digits as its factorization.

561676253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 41.

The square root of 561676253 is about 23699.7099771284. The cubic root of 561676253 is about 825.0786594115.

The spelling of 561676253 in words is "five hundred sixty-one million, six hundred seventy-six thousand, two hundred fifty-three".