654589013 has 4 divisors (see below), whose sum is σ = 704942028. Its totient is φ = 604236000.

The previous prime is 654589009. The next prime is 654589027. The reversal of 654589013 is 310985456.

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 231587524 + 423001489 = 15218^2 + 20567^2 .

It is a cyclic number.

It is not a de Polignac number, because 654589013 - 2² = 654589009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654589093) 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 3 ways as a sum of consecutive naturals, for example, 25176488 + ... + 25176513.

It is an arithmetic number, because the mean of its divisors is an integer number (176235507).

Almost surely, 2^654589013 is an apocalyptic number.

It is an amenable number.

654589013 is a deficient number, since it is larger than the sum of its proper divisors (50353015).

654589013 is a wasteful number, since it uses less digits than its factorization.

654589013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50353014.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 654589013 is about 25584.9372287680. The cubic root of 654589013 is about 868.2728817922.

The spelling of 654589013 in words is "six hundred fifty-four million, five hundred eighty-nine thousand, thirteen".