530640433 has 4 divisors (see below), whose sum is σ = 530897508. Its totient is φ = 530383360.

The previous prime is 530640419. The next prime is 530640437. The reversal of 530640433 is 334046035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334046035 = 5 ⋅66809207.

It can be written as a sum of positive squares in 2 ways, for example, as 187909264 + 342731169 = 13708^2 + 18513^2 .

It is a cyclic number.

It is not a de Polignac number, because 530640433 - 2⁵ = 530640401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530640437) 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, 125416 + ... + 129577.

It is an arithmetic number, because the mean of its divisors is an integer number (132724377).

Almost surely, 2^530640433 is an apocalyptic number.

It is an amenable number.

530640433 is a deficient number, since it is larger than the sum of its proper divisors (257075).

530640433 is a wasteful number, since it uses less digits than its factorization.

530640433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257074.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 530640433 is about 23035.6339830273. The cubic root of 530640433 is about 809.5930654218.

Adding to 530640433 its reverse (334046035), we get a palindrome (864686468).

The spelling of 530640433 in words is "five hundred thirty million, six hundred forty thousand, four hundred thirty-three".