231545352452555 has 16 divisors (see below), whose sum is σ = 278033449657824. Its totient is φ = 185116955082240.

The previous prime is 231545352452543. The next prime is 231545352452597. The reversal of 231545352452555 is 555254253545132.

It is not a de Polignac number, because 231545352452555 - 2⁸ = 231545352452299 is a prime.

It is a super-2 number, since 2×231545352452555² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231545352452555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75081587 + ... + 78104643.

It is an arithmetic number, because the mean of its divisors is an integer number (17377090603614).

Almost surely, 2^{231545352452555} is an apocalyptic number.

231545352452555 is a deficient number, since it is larger than the sum of its proper divisors (46488097205269).

231545352452555 is a wasteful number, since it uses less digits than its factorization.

231545352452555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032926.

The product of its digits is 90000000, while the sum is 56.

The spelling of 231545352452555 in words is "two hundred thirty-one trillion, five hundred forty-five billion, three hundred fifty-two million, four hundred fifty-two thousand, five hundred fifty-five".