60221509 has 2 divisors, whose sum is σ = 60221510. Its totient is φ = 60221508.

The previous prime is 60221489. The next prime is 60221527. The reversal of 60221509 is 90512206.

60221509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43230625 + 16990884 = 6575^2 + 4122^2 .

It is a cyclic number.

It is not a de Polignac number, because 60221509 - 2¹³ = 60213317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60221549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30110754 + 30110755.

It is an arithmetic number, because the mean of its divisors is an integer number (30110755).

Almost surely, 2^60221509 is an apocalyptic number.

It is an amenable number.

60221509 is a deficient number, since it is larger than the sum of its proper divisors (1).

60221509 is an equidigital number, since it uses as much as digits as its factorization.

60221509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 60221509 is about 7760.2518644693. The cubic root of 60221509 is about 391.9679382531.

The spelling of 60221509 in words is "sixty million, two hundred twenty-one thousand, five hundred nine".