256093051633 has 4 divisors (see below), whose sum is σ = 256097580660. Its totient is φ = 256088522608.

The previous prime is 256093051589. The next prime is 256093051693. The reversal of 256093051633 is 336150390652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 230815867489 + 25277184144 = 480433^2 + 158988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256093051633 is a prime.

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 256093051633.

It is not an unprimeable number, because it can be changed into a prime (256093051693) 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, 2178610 + ... + 2293147.

It is an arithmetic number, because the mean of its divisors is an integer number (64024395165).

Almost surely, 2^256093051633 is an apocalyptic number.

It is an amenable number.

256093051633 is a deficient number, since it is larger than the sum of its proper divisors (4529027).

256093051633 is an equidigital number, since it uses as much as digits as its factorization.

256093051633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529026.

The product of its (nonzero) digits is 437400, while the sum is 43.

The spelling of 256093051633 in words is "two hundred fifty-six billion, ninety-three million, fifty-one thousand, six hundred thirty-three".