256051788 has 24 divisors (see below), whose sum is σ = 618056880. Its totient is φ = 82407360.

The previous prime is 256051787. The next prime is 256051793. The reversal of 256051788 is 887150652.

256051788 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

256051788 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (256051781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367543 + ... + 368238.

It is an arithmetic number, because the mean of its divisors is an integer number (25752370).

Almost surely, 2^256051788 is an apocalyptic number.

It is an amenable number.

256051788 is an abundant number, since it is smaller than the sum of its proper divisors (362005092).

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

256051788 is a wasteful number, since it uses less digits than its factorization.

256051788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735817 (or 735815 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 256051788 is about 16001.6182931602. The cubic root of 256051788 is about 635.0032347367.

The spelling of 256051788 in words is "two hundred fifty-six million, fifty-one thousand, seven hundred eighty-eight".