1531331053256 has 32 divisors (see below), whose sum is σ = 3023009618400. Its totient is φ = 725212373760.

The previous prime is 1531331053247. The next prime is 1531331053309. The reversal of 1531331053256 is 6523501331351.

It is a super-2 number, since 2×1531331053256² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 7 ways as a sum of consecutive naturals, for example, 360785 + ... + 1786848.

It is an arithmetic number, because the mean of its divisors is an integer number (94469050575).

Almost surely, 2^{1531331053256} is an apocalyptic number.

It is an amenable number.

1531331053256 is a deficient number, since it is larger than the sum of its proper divisors (1491678565144).

1531331053256 is a wasteful number, since it uses less digits than its factorization.

1531331053256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152349 (or 2152345 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 38.

The spelling of 1531331053256 in words is "one trillion, five hundred thirty-one billion, three hundred thirty-one million, fifty-three thousand, two hundred fifty-six".