60221491 has 8 divisors (see below), whose sum is σ = 66101184. Its totient is φ = 54409320.

The previous prime is 60221489. The next prime is 60221509. The reversal of 60221491 is 19412206.

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

It is a cyclic number.

It is not a de Polignac number, because 60221491 - 2¹ = 60221489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60221401) 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, 15001 + ... + 18586.

It is an arithmetic number, because the mean of its divisors is an integer number (8262648).

Almost surely, 2^60221491 is an apocalyptic number.

60221491 is a deficient number, since it is larger than the sum of its proper divisors (5879693).

60221491 is a wasteful number, since it uses less digits than its factorization.

60221491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33761.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 60221491 is about 7760.2507047131. The cubic root of 60221491 is about 391.9678992004.

Adding to 60221491 its reverse (19412206), we get a palindrome (79633697).

The spelling of 60221491 in words is "sixty million, two hundred twenty-one thousand, four hundred ninety-one".