531005052 has 12 divisors (see below), whose sum is σ = 1239011816. Its totient is φ = 177001680.

The previous prime is 531005023. The next prime is 531005089. The reversal of 531005052 is 250500135.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22125199 + ... + 22125222.

Almost surely, 2^531005052 is an apocalyptic number.

It is an amenable number.

531005052 is an abundant number, since it is smaller than the sum of its proper divisors (708006764).

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

531005052 is a wasteful number, since it uses less digits than its factorization.

531005052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44250428 (or 44250426 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 531005052 is about 23043.5468624081. The cubic root of 531005052 is about 809.7784548804.

Adding to 531005052 its reverse (250500135), we get a palindrome (781505187).

The spelling of 531005052 in words is "five hundred thirty-one million, five thousand, fifty-two".