531000528 has 40 divisors (see below), whose sum is σ = 1372682976. Its totient is φ = 176880000.

The previous prime is 531000521. The next prime is 531000529. The reversal of 531000528 is 825000135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 531000498 and 531000507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531000521) 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, 93778 + ... + 99278.

Almost surely, 2^531000528 is an apocalyptic number.

It is an amenable number.

531000528 is an abundant number, since it is smaller than the sum of its proper divisors (841682448).

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

531000528 is a wasteful number, since it uses less digits than its factorization.

531000528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523 (or 7517 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 531000528 is about 23043.4487002271. The cubic root of 531000528 is about 809.7761551859.

The spelling of 531000528 in words is "five hundred thirty-one million, five hundred twenty-eight", and thus it is an aban number.