60505609 has 2 divisors, whose sum is σ = 60505610. Its totient is φ = 60505608.

The previous prime is 60505597. The next prime is 60505631. The reversal of 60505609 is 90650506.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54760000 + 5745609 = 7400^2 + 2397^2 .

It is a cyclic number.

It is not a de Polignac number, because 60505609 - 2¹³ = 60497417 is a prime.

It is not a weakly prime, because it can be changed into another prime (60505649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30252804 + 30252805.

It is an arithmetic number, because the mean of its divisors is an integer number (30252805).

Almost surely, 2^60505609 is an apocalyptic number.

It is an amenable number.

60505609 is a deficient number, since it is larger than the sum of its proper divisors (1).

60505609 is an equidigital number, since it uses as much as digits as its factorization.

60505609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 60505609 is about 7778.5351448714. The cubic root of 60505609 is about 392.5833520087.

The spelling of 60505609 in words is "sixty million, five hundred five thousand, six hundred nine".