256111292 has 6 divisors (see below), whose sum is σ = 448194768. Its totient is φ = 128055644.

The previous prime is 256111291. The next prime is 256111309. The reversal of 256111292 is 292111652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256111291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32013908 + ... + 32013915.

It is an arithmetic number, because the mean of its divisors is an integer number (74699128).

Almost surely, 2^256111292 is an apocalyptic number.

It is an amenable number.

256111292 is a deficient number, since it is larger than the sum of its proper divisors (192083476).

256111292 is a wasteful number, since it uses less digits than its factorization.

256111292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64027827 (or 64027825 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 256111292 is about 16003.4774970942. The cubic root of 256111292 is about 635.0524204973.

The spelling of 256111292 in words is "two hundred fifty-six million, one hundred eleven thousand, two hundred ninety-two".