531026 has 4 divisors (see below), whose sum is σ = 796542. Its totient is φ = 265512.

The previous prime is 531023. The next prime is 531043. The reversal of 531026 is 620135.

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

It can be written as a sum of positive squares in only one way, i.e., 358801 + 172225 = 599^2 + 415^2 .

It is a super-2 number, since 2×531026² = 563977225352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 530995 and 531013.

It is not an unprimeable number, because it can be changed into a prime (531023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132755 + ... + 132758.

2⁵³¹⁰²⁶ is an apocalyptic number.

531026 is a deficient number, since it is larger than the sum of its proper divisors (265516).

531026 is a wasteful number, since it uses less digits than its factorization.

531026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265515.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 531026 is about 728.7153079221. The cubic root of 531026 is about 80.9789103251.

The spelling of 531026 in words is "five hundred thirty-one thousand, twenty-six".