655575003397 has 4 divisors (see below), whose sum is σ = 655581522636. Its totient is φ = 655568484160.

The previous prime is 655575003331. The next prime is 655575003401. The reversal of 655575003397 is 793300575556.

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 496857224161 + 158717779236 = 704881^2 + 398394^2 .

It is a cyclic number.

It is not a de Polignac number, because 655575003397 - 2¹¹ = 655575001349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655575003497) 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, 3106378 + ... + 3310699.

It is an arithmetic number, because the mean of its divisors is an integer number (163895380659).

Almost surely, 2^655575003397 is an apocalyptic number.

It is an amenable number.

655575003397 is a deficient number, since it is larger than the sum of its proper divisors (6519239).

655575003397 is a wasteful number, since it uses less digits than its factorization.

655575003397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519238.

The product of its (nonzero) digits is 14883750, while the sum is 55.

The spelling of 655575003397 in words is "six hundred fifty-five billion, five hundred seventy-five million, three thousand, three hundred ninety-seven".