530066665 has 4 divisors (see below), whose sum is σ = 636080004. Its totient is φ = 424053328.

The previous prime is 530066659. The next prime is 530066687. The reversal of 530066665 is 566660035.

It is a happy number.

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 385297641 + 144769024 = 19629^2 + 12032^2 .

It is a cyclic number.

It is not a de Polignac number, because 530066665 - 2³ = 530066657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53006662 + ... + 53006671.

It is an arithmetic number, because the mean of its divisors is an integer number (159020001).

Almost surely, 2^530066665 is an apocalyptic number.

It is an amenable number.

530066665 is a deficient number, since it is larger than the sum of its proper divisors (106013339).

530066665 is a wasteful number, since it uses less digits than its factorization.

530066665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106013338.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 530066665 is about 23023.1766921943. The cubic root of 530066665 is about 809.3011627260.

The spelling of 530066665 in words is "five hundred thirty million, sixty-six thousand, six hundred sixty-five".