531050231 has 4 divisors (see below), whose sum is σ = 531892464. Its totient is φ = 530208000.

The previous prime is 531050213. The next prime is 531050249. The reversal of 531050231 is 132050135.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (531050213) and next prime (531050249).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531050231 is a prime.

It is a super-2 number, since 2×531050231² = 564028695690306722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531050281) 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, 420170 + ... + 421431.

It is an arithmetic number, because the mean of its divisors is an integer number (132973116).

Almost surely, 2^531050231 is an apocalyptic number.

531050231 is a deficient number, since it is larger than the sum of its proper divisors (842233).

531050231 is an equidigital number, since it uses as much as digits as its factorization.

531050231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842232.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 531050231 is about 23044.5271376958. The cubic root of 531050231 is about 809.8014201002.

The spelling of 531050231 in words is "five hundred thirty-one million, fifty thousand, two hundred thirty-one".