561762629 has 2 divisors, whose sum is σ = 561762630. Its totient is φ = 561762628.

The previous prime is 561762623. The next prime is 561762673. The reversal of 561762629 is 926267165.

561762629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (561762673) can be obtained adding 561762629 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523036900 + 38725729 = 22870^2 + 6223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561762629 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 561762629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561762623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280881314 + 280881315.

It is an arithmetic number, because the mean of its divisors is an integer number (280881315).

Almost surely, 2^561762629 is an apocalyptic number.

It is an amenable number.

561762629 is a deficient number, since it is larger than the sum of its proper divisors (1).

561762629 is an equidigital number, since it uses as much as digits as its factorization.

561762629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 561762629 is about 23701.5322078553. The cubic root of 561762629 is about 825.1209514739.

The spelling of 561762629 in words is "five hundred sixty-one million, seven hundred sixty-two thousand, six hundred twenty-nine".