256053281148 has 72 divisors (see below), whose sum is σ = 740705591808. Its totient is φ = 73059563808.

The previous prime is 256053281147. The next prime is 256053281173. The reversal of 256053281148 is 841182350652.

256053281148 is a `hidden beast` number, since 2 + 5 + 60 + 532 + 8 + 11 + 48 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256053281147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 496536 + ... + 871007.

It is an arithmetic number, because the mean of its divisors is an integer number (10287577664).

Almost surely, 2^256053281148 is an apocalyptic number.

256053281148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

256053281148 is an abundant number, since it is smaller than the sum of its proper divisors (484652310660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256053281148 is a wasteful number, since it uses less digits than its factorization.

256053281148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368303 (or 1368298 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 256053281148 in words is "two hundred fifty-six billion, fifty-three million, two hundred eighty-one thousand, one hundred forty-eight".