63097561 has 2 divisors, whose sum is σ = 63097562. Its totient is φ = 63097560.

The previous prime is 63097501. The next prime is 63097571. The reversal of 63097561 is 16579036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56625625 + 6471936 = 7525^2 + 2544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63097561 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63097561.

It is not a weakly prime, because it can be changed into another prime (63097501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31548780 + 31548781.

It is an arithmetic number, because the mean of its divisors is an integer number (31548781).

Almost surely, 2^63097561 is an apocalyptic number.

It is an amenable number.

63097561 is a deficient number, since it is larger than the sum of its proper divisors (1).

63097561 is an equidigital number, since it uses as much as digits as its factorization.

63097561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 63097561 is about 7943.3973210460. The cubic root of 63097561 is about 398.1110121044. Note that the first 3 decimals are identical.

The spelling of 63097561 in words is "sixty-three million, ninety-seven thousand, five hundred sixty-one".