256510045501732 has 48 divisors (see below), whose sum is σ = 494347292393472. Its totient is φ = 115489521282080.

The previous prime is 256510045501691. The next prime is 256510045501849. The reversal of 256510045501732 is 237105540015652.

It is a super-3 number, since 3×256510045501732³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 29605653 + ... + 37276195.

It is an arithmetic number, because the mean of its divisors is an integer number (10298901924864).

Almost surely, 2^{256510045501732} is an apocalyptic number.

256510045501732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256510045501732 is a deficient number, since it is larger than the sum of its proper divisors (237837246891740).

256510045501732 is a wasteful number, since it uses less digits than its factorization.

256510045501732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677768 (or 7677766 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 256510045501732 in words is "two hundred fifty-six trillion, five hundred ten billion, forty-five million, five hundred one thousand, seven hundred thirty-two".