602561 has 4 divisors (see below), whose sum is σ = 604500. Its totient is φ = 600624.

The previous prime is 602551. The next prime is 602593. The reversal of 602561 is 165206.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172225 + 430336 = 415^2 + 656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-602561 is a prime.

It is a super-3 number, since 3×602561³ = 656333107484053443, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (602501) 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, 386 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (151125).

2⁶⁰²⁵⁶¹ is an apocalyptic number.

It is an amenable number.

602561 is a deficient number, since it is larger than the sum of its proper divisors (1939).

602561 is a wasteful number, since it uses less digits than its factorization.

602561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 602561 is about 776.2480273727. The cubic root of 602561 is about 84.4630979234.

Adding to 602561 its reverse (165206), we get a palindrome (767767).

The spelling of 602561 in words is "six hundred two thousand, five hundred sixty-one".