551056005 has 48 divisors (see below), whose sum is σ = 975247104. Its totient is φ = 287763840.

The previous prime is 551056001. The next prime is 551056019. The reversal of 551056005 is 500650155.

551056005 is a `hidden beast` number, since 5 + 51 + 0 + 5 + 600 + 5 = 666.

It is not a de Polignac number, because 551056005 - 2² = 551056001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551056005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551056001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1007142 + ... + 1007688.

It is an arithmetic number, because the mean of its divisors is an integer number (20317648).

Almost surely, 2^551056005 is an apocalyptic number.

It is an amenable number.

551056005 is a deficient number, since it is larger than the sum of its proper divisors (424191099).

551056005 is a wasteful number, since it uses less digits than its factorization.

551056005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 551056005 is about 23474.5821049066. The cubic root of 551056005 is about 819.8453034570.

The spelling of 551056005 in words is "five hundred fifty-one million, fifty-six thousand, five".