551611705 has 16 divisors (see below), whose sum is σ = 697394880. Its totient is φ = 417690432.

The previous prime is 551611679. The next prime is 551611717. The reversal of 551611705 is 507116155.

It is a cyclic number.

It is not a de Polignac number, because 551611705 - 2¹¹ = 551609657 is a prime.

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, 153742 + ... + 157288.

It is an arithmetic number, because the mean of its divisors is an integer number (43587180).

Almost surely, 2^551611705 is an apocalyptic number.

It is an amenable number.

551611705 is a deficient number, since it is larger than the sum of its proper divisors (145783175).

551611705 is a wasteful number, since it uses less digits than its factorization.

551611705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208.

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 551611705 is about 23486.4153288662. The cubic root of 551611705 is about 820.1207957084.

The spelling of 551611705 in words is "five hundred fifty-one million, six hundred eleven thousand, seven hundred five".