256252662143 has 4 divisors (see below), whose sum is σ = 256253682048. Its totient is φ = 256251642240.

The previous prime is 256252662121. The next prime is 256252662181. The reversal of 256252662143 is 341266252652.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 256252662143 - 2⁶ = 256252662079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256252662094 and 256252662103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256252661143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162530 + ... + 734112.

It is an arithmetic number, because the mean of its divisors is an integer number (64063420512).

Almost surely, 2^256252662143 is an apocalyptic number.

256252662143 is a deficient number, since it is larger than the sum of its proper divisors (1019905).

256252662143 is an equidigital number, since it uses as much as digits as its factorization.

256252662143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019904.

The product of its digits is 1036800, while the sum is 44.

The spelling of 256252662143 in words is "two hundred fifty-six billion, two hundred fifty-two million, six hundred sixty-two thousand, one hundred forty-three".