530665623 has 12 divisors (see below), whose sum is σ = 784343560. Its totient is φ = 345549456.

The previous prime is 530665621. The next prime is 530665691. The reversal of 530665623 is 326566035.

530665623 is a `hidden beast` number, since 5 + 30 + 66 + 562 + 3 = 666.

It is not a de Polignac number, because 530665623 - 2¹ = 530665621 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 (530665621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 685228 + ... + 686001.

Almost surely, 2^530665623 is an apocalyptic number.

530665623 is a deficient number, since it is larger than the sum of its proper divisors (253677937).

530665623 is a wasteful number, since it uses less digits than its factorization.

530665623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371278 (or 1371275 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 530665623 is about 23036.1807381345. The cubic root of 530665623 is about 809.6058759336.

The spelling of 530665623 in words is "five hundred thirty million, six hundred sixty-five thousand, six hundred twenty-three".