60535661 has 2 divisors, whose sum is σ = 60535662. Its totient is φ = 60535660.

The previous prime is 60535637. The next prime is 60535667. The reversal of 60535661 is 16653506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38502025 + 22033636 = 6205^2 + 4694^2 .

It is a cyclic number.

It is not a de Polignac number, because 60535661 - 2²² = 56341357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60535667) 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, 30267830 + 30267831.

It is an arithmetic number, because the mean of its divisors is an integer number (30267831).

Almost surely, 2^60535661 is an apocalyptic number.

It is an amenable number.

60535661 is a deficient number, since it is larger than the sum of its proper divisors (1).

60535661 is an equidigital number, since it uses as much as digits as its factorization.

60535661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 60535661 is about 7780.4666312503. The cubic root of 60535661 is about 392.6483375109.

The spelling of 60535661 in words is "sixty million, five hundred thirty-five thousand, six hundred sixty-one".