531324025040 has 40 divisors (see below), whose sum is σ = 1247321856768. Its totient is φ = 210466212480.

The previous prime is 531324025033. The next prime is 531324025073. The reversal of 531324025040 is 40520423135.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 531324024994 and 531324025012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32232296 + ... + 32248775.

Almost surely, 2^531324025040 is an apocalyptic number.

It is an amenable number.

531324025040 is an abundant number, since it is smaller than the sum of its proper divisors (715997831728).

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

531324025040 is a wasteful number, since it uses less digits than its factorization.

531324025040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64481187 (or 64481181 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 531324025040 its reverse (40520423135), we get a palindrome (571844448175).

The spelling of 531324025040 in words is "five hundred thirty-one billion, three hundred twenty-four million, twenty-five thousand, forty".