61263617 has 2 divisors, whose sum is σ = 61263618. Its totient is φ = 61263616.

The previous prime is 61263611. The next prime is 61263637. The reversal of 61263617 is 71636216.

61263617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60902416 + 361201 = 7804^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 61263617 - 2⁸ = 61263361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61263611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30631808 + 30631809.

It is an arithmetic number, because the mean of its divisors is an integer number (30631809).

Almost surely, 2^61263617 is an apocalyptic number.

It is an amenable number.

61263617 is a deficient number, since it is larger than the sum of its proper divisors (1).

61263617 is an equidigital number, since it uses as much as digits as its factorization.

61263617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 61263617 is about 7827.1078311213. The cubic root of 61263617 is about 394.2159676429.

The spelling of 61263617 in words is "sixty-one million, two hundred sixty-three thousand, six hundred seventeen".