60535991 has 2 divisors, whose sum is σ = 60535992. Its totient is φ = 60535990.

The previous prime is 60535961. The next prime is 60536039. The reversal of 60535991 is 19953506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60535991 - 2⁶ = 60535927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60535961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30267995 + 30267996.

It is an arithmetic number, because the mean of its divisors is an integer number (30267996).

Almost surely, 2^60535991 is an apocalyptic number.

60535991 is a deficient number, since it is larger than the sum of its proper divisors (1).

60535991 is an equidigital number, since it uses as much as digits as its factorization.

60535991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 60535991 is about 7780.4878381757. The cubic root of 60535991 is about 392.6490509951.

The spelling of 60535991 in words is "sixty million, five hundred thirty-five thousand, nine hundred ninety-one".