531520422452 has 24 divisors (see below), whose sum is σ = 933725654400. Its totient is φ = 264743531136.

The previous prime is 531520422439. The next prime is 531520422457. The reversal of 531520422452 is 254224025135.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531520422457) 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, 908549 + ... + 1374227.

It is an arithmetic number, because the mean of its divisors is an integer number (38905235600).

Almost surely, 2^531520422452 is an apocalyptic number.

It is an amenable number.

531520422452 is a deficient number, since it is larger than the sum of its proper divisors (402205231948).

531520422452 is a wasteful number, since it uses less digits than its factorization.

531520422452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466775 (or 466773 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 531520422452 its reverse (254224025135), we get a palindrome (785744447587).

The spelling of 531520422452 in words is "five hundred thirty-one billion, five hundred twenty million, four hundred twenty-two thousand, four hundred fifty-two".