61332563 has 2 divisors, whose sum is σ = 61332564. Its totient is φ = 61332562.

The previous prime is 61332541. The next prime is 61332581. The reversal of 61332563 is 36523316.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61332563 - 2⁸ = 61332307 is a prime.

It is a super-3 number, since 3×61332563³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (61332503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30666281 + 30666282.

It is an arithmetic number, because the mean of its divisors is an integer number (30666282).

Almost surely, 2^61332563 is an apocalyptic number.

61332563 is a deficient number, since it is larger than the sum of its proper divisors (1).

61332563 is an equidigital number, since it uses as much as digits as its factorization.

61332563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 29.

The square root of 61332563 is about 7831.5109014800. The cubic root of 61332563 is about 394.3637955917.

Adding to 61332563 its reverse (36523316), we get a palindrome (97855879).

The spelling of 61332563 in words is "sixty-one million, three hundred thirty-two thousand, five hundred sixty-three".