256052004 has 24 divisors (see below), whose sum is σ = 643413120. Its totient is φ = 78785184.

The previous prime is 256052003. The next prime is 256052029. The reversal of 256052004 is 400250652.

It is not an unprimeable number, because it can be changed into a prime (256052003) 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, 820524 + ... + 820835.

It is an arithmetic number, because the mean of its divisors is an integer number (26808880).

Almost surely, 2^256052004 is an apocalyptic number.

It is an amenable number.

256052004 is an abundant number, since it is smaller than the sum of its proper divisors (387361116).

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

256052004 is a wasteful number, since it uses less digits than its factorization.

256052004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641379 (or 1641377 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 256052004 is about 16001.6250424762. The cubic root of 256052004 is about 635.0034132951.

The spelling of 256052004 in words is "two hundred fifty-six million, fifty-two thousand, four".