60517221 has 4 divisors (see below), whose sum is σ = 80689632. Its totient is φ = 40344812.

The previous prime is 60517217. The next prime is 60517243. The reversal of 60517221 is 12271506.

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.

It is a cyclic number.

It is not a de Polignac number, because 60517221 - 2² = 60517217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 60517191 and 60517200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60517201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10086201 + ... + 10086206.

It is an arithmetic number, because the mean of its divisors is an integer number (20172408).

Almost surely, 2^60517221 is an apocalyptic number.

It is an amenable number.

60517221 is a deficient number, since it is larger than the sum of its proper divisors (20172411).

60517221 is a wasteful number, since it uses less digits than its factorization.

60517221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20172410.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 60517221 is about 7779.2815220944. The cubic root of 60517221 is about 392.6084647564.

Adding to 60517221 its reverse (12271506), we get a palindrome (72788727).

The spelling of 60517221 in words is "sixty million, five hundred seventeen thousand, two hundred twenty-one".