531400355432 has 16 divisors (see below), whose sum is σ = 996422544900. Its totient is φ = 265687676800.

The previous prime is 531400355413. The next prime is 531400355477. The reversal of 531400355432 is 234553004135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 531140694436 + 259660996 = 728794^2 + 16114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 531400355392 and 531400355401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380707 + ... + 1723122.

Almost surely, 2^531400355432 is an apocalyptic number.

It is an amenable number.

531400355432 is a deficient number, since it is larger than the sum of its proper divisors (465022189468).

531400355432 is a wasteful number, since it uses less digits than its factorization.

531400355432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125236 (or 3125232 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 531400355432 its reverse (234553004135), we get a palindrome (765953359567).

The spelling of 531400355432 in words is "five hundred thirty-one billion, four hundred million, three hundred fifty-five thousand, four hundred thirty-two".