655020005 has 8 divisors (see below), whose sum is σ = 788078592. Its totient is φ = 522646288.

The previous prime is 655019999. The next prime is 655020017. The reversal of 655020005 is 500020556.

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 655020005 - 2¹² = 655015909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169109 + ... + 172938.

It is an arithmetic number, because the mean of its divisors is an integer number (98509824).

Almost surely, 2^655020005 is an apocalyptic number.

It is an amenable number.

655020005 is a deficient number, since it is larger than the sum of its proper divisors (133058587).

655020005 is a wasteful number, since it uses less digits than its factorization.

655020005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342435.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 655020005 is about 25593.3586111710. The cubic root of 655020005 is about 868.4634016237.

The spelling of 655020005 in words is "six hundred fifty-five million, twenty thousand, five".