2256532512431 has 8 divisors (see below), whose sum is σ = 2285297172480. Its totient is φ = 2227772876472.

The previous prime is 2256532512401. The next prime is 2256532512449. The reversal of 2256532512431 is 1342152356522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2256532512431 is a prime.

It is a super-2 number, since 2×2256532512431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256532512401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347855 + ... + 2152688.

It is an arithmetic number, because the mean of its divisors is an integer number (285662146560).

Almost surely, 2^{2256532512431} is an apocalyptic number.

2256532512431 is a deficient number, since it is larger than the sum of its proper divisors (28764660049).

2256532512431 is a wasteful number, since it uses less digits than its factorization.

2256532512431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512045.

The product of its digits is 432000, while the sum is 41.

Adding to 2256532512431 its reverse (1342152356522), we get a palindrome (3598684868953).

The spelling of 2256532512431 in words is "two trillion, two hundred fifty-six billion, five hundred thirty-two million, five hundred twelve thousand, four hundred thirty-one".