531226561542 has 16 divisors (see below), whose sum is σ = 1062464601072. Its totient is φ = 177073607520.

The previous prime is 531226561531. The next prime is 531226561603. The reversal of 531226561542 is 245165622135.

It is a junction number, because it is equal to n+sod(n) for n = 531226561494 and 531226561503.

It is a congruent number.

It is an unprimeable number.

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, 196692 + ... + 1049352.

It is an arithmetic number, because the mean of its divisors is an integer number (66404037567).

Almost surely, 2^531226561542 is an apocalyptic number.

531226561542 is an abundant number, since it is smaller than the sum of its proper divisors (531238039530).

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

531226561542 is a wasteful number, since it uses less digits than its factorization.

531226561542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956503.

The product of its digits is 432000, while the sum is 42.

The spelling of 531226561542 in words is "five hundred thirty-one billion, two hundred twenty-six million, five hundred sixty-one thousand, five hundred forty-two".