531800641 has 16 divisors (see below), whose sum is σ = 565213824. Its totient is φ = 499302144.

The previous prime is 531800611. The next prime is 531800677. The reversal of 531800641 is 146008135.

It is a cyclic number.

It is not a de Polignac number, because 531800641 - 2¹¹ = 531798593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531800611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666855 + ... + 667651.

It is an arithmetic number, because the mean of its divisors is an integer number (35325864).

Almost surely, 2^531800641 is an apocalyptic number.

It is an amenable number.

531800641 is a deficient number, since it is larger than the sum of its proper divisors (33413183).

531800641 is a wasteful number, since it uses less digits than its factorization.

531800641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 531800641 is about 23060.8031299866. The cubic root of 531800641 is about 810.1826753565.

Adding to 531800641 its reverse (146008135), we get a palindrome (677808776).

The spelling of 531800641 in words is "five hundred thirty-one million, eight hundred thousand, six hundred forty-one".