601655489 has 8 divisors (see below), whose sum is σ = 623612520. Its totient is φ = 579779200.

The previous prime is 601655477. The next prime is 601655497. The reversal of 601655489 is 984556106.

It can be written as a sum of positive squares in 4 ways, for example, as 81450625 + 520204864 = 9025^2 + 22808^2 .

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 601655489 - 2⁴ = 601655473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (601655189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4802 + ... + 35019.

It is an arithmetic number, because the mean of its divisors is an integer number (77951565).

Almost surely, 2^601655489 is an apocalyptic number.

It is an amenable number.

601655489 is a deficient number, since it is larger than the sum of its proper divisors (21957031).

601655489 is a wasteful number, since it uses less digits than its factorization.

601655489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40371.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 601655489 is about 24528.6666779913. Note that the first 4 decimals coincide. The cubic root of 601655489 is about 844.2076715634.

The spelling of 601655489 in words is "six hundred one million, six hundred fifty-five thousand, four hundred eighty-nine".