654425605 has 8 divisors (see below), whose sum is σ = 787563000. Its totient is φ = 522038976.

The previous prime is 654425599. The next prime is 654425657. The reversal of 654425605 is 506524456.

It can be written as a sum of positive squares in 4 ways, for example, as 67914081 + 586511524 = 8241^2 + 24218^2 .

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 654425605 - 2²⁹ = 117554693 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 185770 + ... + 189259.

It is an arithmetic number, because the mean of its divisors is an integer number (98445375).

Almost surely, 2^654425605 is an apocalyptic number.

It is an amenable number.

654425605 is a deficient number, since it is larger than the sum of its proper divisors (133137395).

654425605 is a wasteful number, since it uses less digits than its factorization.

654425605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375383.

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 654425605 is about 25581.7435879574. The cubic root of 654425605 is about 868.2006254908.

The spelling of 654425605 in words is "six hundred fifty-four million, four hundred twenty-five thousand, six hundred five".