532313021 has 4 divisors (see below), whose sum is σ = 532760412. Its totient is φ = 531865632.

The previous prime is 532313003. The next prime is 532313029. The reversal of 532313021 is 120313235.

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 247716121 + 284596900 = 15739^2 + 16870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-532313021 is a prime.

It is a super-2 number, since 2×532313021² = 566714304652292882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 532312984 and 532313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532313029) 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, 221906 + ... + 224291.

It is an arithmetic number, because the mean of its divisors is an integer number (133190103).

Almost surely, 2^532313021 is an apocalyptic number.

It is an amenable number.

532313021 is a deficient number, since it is larger than the sum of its proper divisors (447391).

532313021 is a wasteful number, since it uses less digits than its factorization.

532313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447390.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 532313021 is about 23071.9097822439. The cubic root of 532313021 is about 810.4427904685.

Adding to 532313021 its reverse (120313235), we get a palindrome (652626256).

The spelling of 532313021 in words is "five hundred thirty-two million, three hundred thirteen thousand, twenty-one".