256002556312 has 32 divisors (see below), whose sum is σ = 480927559680. Its totient is φ = 127755450400.

The previous prime is 256002556289. The next prime is 256002556331. The reversal of 256002556312 is 213655200652.

It is a super-3 number, since 3×256002556312³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9037323 + ... + 9065605.

It is an arithmetic number, because the mean of its divisors is an integer number (15028986240).

Almost surely, 2^256002556312 is an apocalyptic number.

It is an amenable number.

256002556312 is a deficient number, since it is larger than the sum of its proper divisors (224925003368).

256002556312 is a wasteful number, since it uses less digits than its factorization.

256002556312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30423 (or 30419 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 256002556312 its reverse (213655200652), we get a palindrome (469657756964).

The spelling of 256002556312 in words is "two hundred fifty-six billion, two million, five hundred fifty-six thousand, three hundred twelve".