60655221 has 12 divisors (see below), whose sum is σ = 95578080. Its totient is φ = 36760680.

The previous prime is 60655219. The next prime is 60655237. The reversal of 60655221 is 12255606.

60655221 is a `hidden beast` number, since 6 + 0 + 655 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 60655221 - 2¹ = 60655219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60655421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306241 + ... + 306438.

It is an arithmetic number, because the mean of its divisors is an integer number (7964840).

Almost surely, 2^60655221 is an apocalyptic number.

It is an amenable number.

60655221 is a deficient number, since it is larger than the sum of its proper divisors (34922859).

60655221 is a wasteful number, since it uses less digits than its factorization.

60655221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612696 (or 612693 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 60655221 is about 7788.1461850687. The cubic root of 60655221 is about 392.9066654800.

The spelling of 60655221 in words is "sixty million, six hundred fifty-five thousand, two hundred twenty-one".