256008850590 has 32 divisors (see below), whose sum is σ = 615923523360. Its totient is φ = 68102106624.

The previous prime is 256008850577. The next prime is 256008850609. The reversal of 256008850590 is 95058800652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10420039 + ... + 10444578.

It is an arithmetic number, because the mean of its divisors is an integer number (19247610105).

Almost surely, 2^256008850590 is an apocalyptic number.

256008850590 is an abundant number, since it is smaller than the sum of its proper divisors (359914672770).

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

256008850590 is a wasteful number, since it uses less digits than its factorization.

256008850590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20865036.

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 256008850590 in words is "two hundred fifty-six billion, eight million, eight hundred fifty thousand, five hundred ninety".