531320567 has 4 divisors (see below), whose sum is σ = 562574736. Its totient is φ = 500066400.

The previous prime is 531320561. The next prime is 531320597. The reversal of 531320567 is 765023135.

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

It is a cyclic number.

It is not a de Polignac number, because 531320567 - 2⁴ = 531320551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531320561) 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, 15627059 + ... + 15627092.

It is an arithmetic number, because the mean of its divisors is an integer number (140643684).

Almost surely, 2^531320567 is an apocalyptic number.

531320567 is a deficient number, since it is larger than the sum of its proper divisors (31254169).

531320567 is a wasteful number, since it uses less digits than its factorization.

531320567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31254168.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 531320567 is about 23050.3919055620. The cubic root of 531320567 is about 809.9388090746.

The spelling of 531320567 in words is "five hundred thirty-one million, three hundred twenty thousand, five hundred sixty-seven".