551665106 has 4 divisors (see below), whose sum is σ = 827497662. Its totient is φ = 275832552.

The previous prime is 551665099. The next prime is 551665117. The reversal of 551665106 is 601566155.

551665106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 278589481 + 273075625 = 16691^2 + 16525^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137916275 + ... + 137916278.

Almost surely, 2^551665106 is an apocalyptic number.

551665106 is a deficient number, since it is larger than the sum of its proper divisors (275832556).

551665106 is a wasteful number, since it uses less digits than its factorization.

551665106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275832555.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 551665106 is about 23487.5521500219. The cubic root of 551665106 is about 820.1472598902.

The spelling of 551665106 in words is "five hundred fifty-one million, six hundred sixty-five thousand, one hundred six".