1531331053252 has 72 divisors (see below), whose sum is σ = 3662344264320. Its totient is φ = 550728440640.

The previous prime is 1531331053247. The next prime is 1531331053309. The reversal of 1531331053252 is 2523501331351.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27289852 + ... + 27345907.

It is an arithmetic number, because the mean of its divisors is an integer number (50865892560).

Almost surely, 2^{1531331053252} is an apocalyptic number.

It is an amenable number.

1531331053252 is an abundant number, since it is smaller than the sum of its proper divisors (2131013211068).

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

1531331053252 is a wasteful number, since it uses less digits than its factorization.

1531331053252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54635801 (or 54635792 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 1531331053252 in words is "one trillion, five hundred thirty-one billion, three hundred thirty-one million, fifty-three thousand, two hundred fifty-two".