531520030 has 8 divisors (see below), whose sum is σ = 956736072. Its totient is φ = 212608008.

The previous prime is 531520027. The next prime is 531520037. The reversal of 531520030 is 30025135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531520037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26575992 + ... + 26576011.

It is an arithmetic number, because the mean of its divisors is an integer number (119592009).

Almost surely, 2^531520030 is an apocalyptic number.

531520030 is a deficient number, since it is larger than the sum of its proper divisors (425216042).

531520030 is a wasteful number, since it uses less digits than its factorization.

531520030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53152010.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 531520030 is about 23054.7181722093. The cubic root of 531520030 is about 810.0401494096.

Adding to 531520030 its reverse (30025135), we get a palindrome (561545165).

The spelling of 531520030 in words is "five hundred thirty-one million, five hundred twenty thousand, thirty".