256012547211 has 24 divisors (see below), whose sum is σ = 384324084144. Its totient is φ = 170304729120.

The previous prime is 256012547173. The next prime is 256012547249. The reversal of 256012547211 is 112745210652.

256012547211 is a `hidden beast` number, since 2 + 5 + 60 + 125 + 472 + 1 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (256012547173) and next prime (256012547249).

It is not a de Polignac number, because 256012547211 - 2⁷ = 256012547083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256012547261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030656 + ... + 1254701.

It is an arithmetic number, because the mean of its divisors is an integer number (16013503506).

Almost surely, 2^256012547211 is an apocalyptic number.

256012547211 is a deficient number, since it is larger than the sum of its proper divisors (128311536933).

256012547211 is an equidigital number, since it uses as much as digits as its factorization.

256012547211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285833 (or 2285821 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 256012547211 its reverse (112745210652), we get a palindrome (368757757863).

The spelling of 256012547211 in words is "two hundred fifty-six billion, twelve million, five hundred forty-seven thousand, two hundred eleven".