256011086 has 4 divisors (see below), whose sum is σ = 384016632. Its totient is φ = 128005542.

The previous prime is 256011079. The next prime is 256011127. The reversal of 256011086 is 680110652.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64002770 + ... + 64002773.

It is an arithmetic number, because the mean of its divisors is an integer number (96004158).

Almost surely, 2^256011086 is an apocalyptic number.

256011086 is a deficient number, since it is larger than the sum of its proper divisors (128005546).

256011086 is a wasteful number, since it uses less digits than its factorization.

256011086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128005545.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 256011086 is about 16000.3464337495. The cubic root of 256011086 is about 634.9695862425.

The spelling of 256011086 in words is "two hundred fifty-six million, eleven thousand, eighty-six".