531512054422 has 16 divisors (see below), whose sum is σ = 849045786912. Its totient is φ = 248677517440.

The previous prime is 531512054419. The next prime is 531512054429. The reversal of 531512054422 is 224450215135.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531512054429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45175354 + ... + 45187117.

It is an arithmetic number, because the mean of its divisors is an integer number (53065361682).

Almost surely, 2^531512054422 is an apocalyptic number.

531512054422 is a deficient number, since it is larger than the sum of its proper divisors (317533732490).

531512054422 is a wasteful number, since it uses less digits than its factorization.

531512054422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90362663.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 531512054422 its reverse (224450215135), we get a palindrome (755962269557).

The spelling of 531512054422 in words is "five hundred thirty-one billion, five hundred twelve million, fifty-four thousand, four hundred twenty-two".