531522364 has 24 divisors (see below), whose sum is σ = 980628768. Its totient is φ = 251581440.

The previous prime is 531522361. The next prime is 531522371. The reversal of 531522364 is 463225135.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531522361) 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, 20857 + ... + 38704.

It is an arithmetic number, because the mean of its divisors is an integer number (40859532).

Almost surely, 2^531522364 is an apocalyptic number.

It is an amenable number.

531522364 is a deficient number, since it is larger than the sum of its proper divisors (449106404).

531522364 is a wasteful number, since it uses less digits than its factorization.

531522364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59685 (or 59683 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 531522364 is about 23054.7687908597. The cubic root of 531522364 is about 810.0413350851.

Adding to 531522364 its reverse (463225135), we get a palindrome (994747499).

The spelling of 531522364 in words is "five hundred thirty-one million, five hundred twenty-two thousand, three hundred sixty-four".