660555050 has 12 divisors (see below), whose sum is σ = 1228632486. Its totient is φ = 264222000.

The previous prime is 660555047. The next prime is 660555053. The reversal of 660555050 is 50555066.

It is an interprime number because it is at equal distance from previous prime (660555047) and next prime (660555053).

It can be written as a sum of positive squares in 3 ways, for example, as 491996761 + 168558289 = 22181^2 + 12983^2 .

It is a junction number, because it is equal to n+sod(n) for n = 660554998 and 660555016.

It is not an unprimeable number, because it can be changed into a prime (660555053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6605501 + ... + 6605600.

Almost surely, 2^660555050 is an apocalyptic number.

660555050 is a deficient number, since it is larger than the sum of its proper divisors (568077436).

660555050 is a wasteful number, since it uses less digits than its factorization.

660555050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211113 (or 13211108 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 660555050 is about 25701.2655330433. The cubic root of 660555050 is about 870.9027710072.

The spelling of 660555050 in words is "six hundred sixty million, five hundred fifty-five thousand, fifty".