256052890 has 32 divisors (see below), whose sum is σ = 478068480. Its totient is φ = 98624064.

The previous prime is 256052887. The next prime is 256052891. The reversal of 256052890 is 98250652.

It is a happy number.

256052890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256052891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133317 + ... + 135223.

It is an arithmetic number, because the mean of its divisors is an integer number (14939640).

Almost surely, 2^256052890 is an apocalyptic number.

256052890 is a deficient number, since it is larger than the sum of its proper divisors (222015590).

256052890 is a wasteful number, since it uses less digits than its factorization.

256052890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 256052890 is about 16001.6527271404. The cubic root of 256052890 is about 635.0041457146.

The spelling of 256052890 in words is "two hundred fifty-six million, fifty-two thousand, eight hundred ninety".