1531357326255 has 16 divisors (see below), whose sum is σ = 2453245984224. Its totient is φ = 815699153280.

The previous prime is 1531357326217. The next prime is 1531357326259. The reversal of 1531357326255 is 5526237531351.

It is not a de Polignac number, because 1531357326255 - 2¹⁰ = 1531357325231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1531357326259) 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 15 ways as a sum of consecutive naturals, for example, 64034776 + ... + 64058685.

It is an arithmetic number, because the mean of its divisors is an integer number (153327874014).

Almost surely, 2^{1531357326255} is an apocalyptic number.

1531357326255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1531357326255 is a deficient number, since it is larger than the sum of its proper divisors (921888657969).

1531357326255 is a wasteful number, since it uses less digits than its factorization.

1531357326255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128094266.

The product of its digits is 2835000, while the sum is 48.

The spelling of 1531357326255 in words is "one trillion, five hundred thirty-one billion, three hundred fifty-seven million, three hundred twenty-six thousand, two hundred fifty-five".