601225641 has 6 divisors (see below), whose sum is σ = 868437050. Its totient is φ = 400817088.

The previous prime is 601225637. The next prime is 601225661. The reversal of 601225641 is 146522106.

601225641 is a `hidden beast` number, since 6 + 0 + 12 + 2 + 5 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 357210000 + 244015641 = 18900^2 + 15621^2 .

It is not a de Polignac number, because 601225641 - 2² = 601225637 is a prime.

It is a super-2 number, since 2×601225641² = 722944542791721762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (601225631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33401416 + ... + 33401433.

Almost surely, 2^601225641 is an apocalyptic number.

It is an amenable number.

601225641 is a deficient number, since it is larger than the sum of its proper divisors (267211409).

601225641 is a wasteful number, since it uses less digits than its factorization.

601225641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66802855 (or 66802852 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 601225641 is about 24519.9029565779. The cubic root of 601225641 is about 844.0065778371.

Adding to 601225641 its reverse (146522106), we get a palindrome (747747747).

The spelling of 601225641 in words is "six hundred one million, two hundred twenty-five thousand, six hundred forty-one".