531553400042 has 16 divisors (see below), whose sum is σ = 911375330112. Its totient is φ = 227773367520.

The previous prime is 531553399931. The next prime is 531553400201. The reversal of 531553400042 is 240004355135.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 531553399981 and 531553400008.

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, 2842184 + ... + 3023427.

It is an arithmetic number, because the mean of its divisors is an integer number (56960958132).

Almost surely, 2^531553400042 is an apocalyptic number.

531553400042 is a deficient number, since it is larger than the sum of its proper divisors (379821930070).

531553400042 is a wasteful number, since it uses less digits than its factorization.

531553400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872093.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 531553400042 its reverse (240004355135), we get a palindrome (771557755177).

The spelling of 531553400042 in words is "five hundred thirty-one billion, five hundred fifty-three million, four hundred thousand, forty-two".