256025105 has 8 divisors (see below), whose sum is σ = 351120192. Its totient is φ = 175560048.

The previous prime is 256025093. The next prime is 256025111. The reversal of 256025105 is 501520652.

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

It is a cyclic number.

It is not a de Polignac number, because 256025105 - 2¹² = 256021009 is a prime.

It is a super-2 number, since 2×256025105² = 131097708780522050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3657467 + ... + 3657536.

It is an arithmetic number, because the mean of its divisors is an integer number (43890024).

Almost surely, 2^256025105 is an apocalyptic number.

It is an amenable number.

256025105 is a deficient number, since it is larger than the sum of its proper divisors (95095087).

256025105 is an equidigital number, since it uses as much as digits as its factorization.

256025105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7315015.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 256025105 is about 16000.7845120169. The cubic root of 256025105 is about 634.9811762044.

Adding to 256025105 its reverse (501520652), we get a palindrome (757545757).

The spelling of 256025105 in words is "two hundred fifty-six million, twenty-five thousand, one hundred five".