655519945 has 8 divisors (see below), whose sum is σ = 787302720. Its totient is φ = 523963440.

The previous prime is 655519933. The next prime is 655519957. The reversal of 655519945 is 549915556.

It is an interprime number because it is at equal distance from previous prime (655519933) and next prime (655519957).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655519945 - 2²³ = 647131337 is a prime.

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, 50125 + ... + 61834.

It is an arithmetic number, because the mean of its divisors is an integer number (98412840).

Almost surely, 2^655519945 is an apocalyptic number.

It is an amenable number.

655519945 is a deficient number, since it is larger than the sum of its proper divisors (131782775).

655519945 is a wasteful number, since it uses less digits than its factorization.

655519945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113135.

The product of its digits is 1215000, while the sum is 49.

The square root of 655519945 is about 25603.1237352007. The cubic root of 655519945 is about 868.6842952223.

The spelling of 655519945 in words is "six hundred fifty-five million, five hundred nineteen thousand, nine hundred forty-five".