531005464 has 32 divisors (see below), whose sum is σ = 1143316800. Its totient is φ = 228661920.

The previous prime is 531005459. The next prime is 531005467. The reversal of 531005464 is 464500135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531005467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157122 + ... + 160465.

It is an arithmetic number, because the mean of its divisors is an integer number (35728650).

Almost surely, 2^531005464 is an apocalyptic number.

It is an amenable number.

531005464 is an abundant number, since it is smaller than the sum of its proper divisors (612311336).

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

531005464 is a wasteful number, since it uses less digits than its factorization.

531005464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317623 (or 317619 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 531005464 is about 23043.5558020024. Note that the first 3 decimals coincide. The cubic root of 531005464 is about 809.7786643125.

Adding to 531005464 its reverse (464500135), we get a palindrome (995505599).

It can be divided in two parts, 53100 and 5464, that added together give a square (58564 = 242²).

The spelling of 531005464 in words is "five hundred thirty-one million, five thousand, four hundred sixty-four".