531166572 has 60 divisors (see below), whose sum is σ = 1394195880. Its totient is φ = 176338944.

The previous prime is 531166543. The next prime is 531166579. The reversal of 531166572 is 275661135.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (531166579) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 80079 + ... + 86457.

It is an arithmetic number, because the mean of its divisors is an integer number (23236598).

Almost surely, 2^531166572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531166572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697097940).

531166572 is an abundant number, since it is smaller than the sum of its proper divisors (863029308).

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

531166572 is a wasteful number, since it uses less digits than its factorization.

531166572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652 (or 6641 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 531166572 is about 23047.0512647497. The cubic root of 531166572 is about 809.8605521260.

The spelling of 531166572 in words is "five hundred thirty-one million, one hundred sixty-six thousand, five hundred seventy-two".