531881363 has 12 divisors (see below), whose sum is σ = 609824808. Its totient is φ = 462084480.

The previous prime is 531881323. The next prime is 531881393. The reversal of 531881363 is 363188135.

It is not a de Polignac number, because 531881363 - 2⁸ = 531881107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531881323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89693 + ... + 95438.

It is an arithmetic number, because the mean of its divisors is an integer number (50818734).

Almost surely, 2^531881363 is an apocalyptic number.

531881363 is a deficient number, since it is larger than the sum of its proper divisors (77943445).

531881363 is a wasteful number, since it uses less digits than its factorization.

531881363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185174 (or 185161 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 531881363 is about 23062.5532628111. The cubic root of 531881363 is about 810.2236658155.

The spelling of 531881363 in words is "five hundred thirty-one million, eight hundred eighty-one thousand, three hundred sixty-three".