551020612256 has 24 divisors (see below), whose sum is σ = 1089963179424. Its totient is φ = 274204566720.

The previous prime is 551020612217. The next prime is 551020612273. The reversal of 551020612256 is 652216020155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40797500 + ... + 40811003.

It is an arithmetic number, because the mean of its divisors is an integer number (45415132476).

Almost surely, 2^551020612256 is an apocalyptic number.

It is an amenable number.

551020612256 is a deficient number, since it is larger than the sum of its proper divisors (538942567168).

551020612256 is a wasteful number, since it uses less digits than its factorization.

551020612256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81608724 (or 81608716 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 551020612256 in words is "five hundred fifty-one billion, twenty million, six hundred twelve thousand, two hundred fifty-six".