531113004 has 48 divisors (see below), whose sum is σ = 1449436800. Its totient is φ = 167719248.

The previous prime is 531112993. The next prime is 531113017. The reversal of 531113004 is 400311135.

531113004 is a `hidden beast` number, since 531 + 1 + 130 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127362 + ... + 131465.

It is an arithmetic number, because the mean of its divisors is an integer number (30196600).

Almost surely, 2^531113004 is an apocalyptic number.

531113004 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

531113004 is an abundant number, since it is smaller than the sum of its proper divisors (918323796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531113004 is a wasteful number, since it uses less digits than its factorization.

531113004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258859 (or 258851 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 531113004 is about 23045.8890911156. The cubic root of 531113004 is about 809.8333264742.

Adding to 531113004 its reverse (400311135), we get a palindrome (931424139).

The spelling of 531113004 in words is "five hundred thirty-one million, one hundred thirteen thousand, four".