60557221 has 4 divisors (see below), whose sum is σ = 60573600. Its totient is φ = 60540844.

The previous prime is 60557219. The next prime is 60557251. The reversal of 60557221 is 12275506.

60557221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12275506 = 2 ⋅6137753.

It is a cyclic number.

It is not a de Polignac number, because 60557221 - 2¹ = 60557219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60557221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60557251) 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 in 3 ways as a sum of consecutive naturals, for example, 270 + ... + 11008.

It is an arithmetic number, because the mean of its divisors is an integer number (15143400).

Almost surely, 2^60557221 is an apocalyptic number.

It is an amenable number.

60557221 is a deficient number, since it is larger than the sum of its proper divisors (16379).

60557221 is a wasteful number, since it uses less digits than its factorization.

60557221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16378.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 60557221 is about 7781.8520289196. The cubic root of 60557221 is about 392.6949463649.

The spelling of 60557221 in words is "sixty million, five hundred fifty-seven thousand, two hundred twenty-one".