60540221 has 8 divisors (see below), whose sum is σ = 69356544. Its totient is φ = 51765840.

The previous prime is 60540211. The next prime is 60540229. The reversal of 60540221 is 12204506.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 60540221 - 2²² = 56345917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60540193 and 60540202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60540229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7325 + ... + 13218.

It is an arithmetic number, because the mean of its divisors is an integer number (8669568).

Almost surely, 2^60540221 is an apocalyptic number.

It is an amenable number.

60540221 is a deficient number, since it is larger than the sum of its proper divisors (8816323).

60540221 is a wasteful number, since it uses less digits than its factorization.

60540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20971.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 60540221 is about 7780.7596672819. The cubic root of 60540221 is about 392.6581963359.

Adding to 60540221 its reverse (12204506), we get a palindrome (72744727).

The spelling of 60540221 in words is "sixty million, five hundred forty thousand, two hundred twenty-one".