551610065 has 8 divisors (see below), whose sum is σ = 667790568. Its totient is φ = 437382400.

The previous prime is 551610049. The next prime is 551610079. The reversal of 551610065 is 560016155.

551610065 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 863041 + 550747024 = 929^2 + 23468^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551610065 - 2⁴ = 551610049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487586 + ... + 488715.

It is an arithmetic number, because the mean of its divisors is an integer number (83473821).

Almost surely, 2^551610065 is an apocalyptic number.

It is an amenable number.

551610065 is a deficient number, since it is larger than the sum of its proper divisors (116180503).

551610065 is a wasteful number, since it uses less digits than its factorization.

551610065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976419.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 551610065 is about 23486.3804150405. The cubic root of 551610065 is about 820.1199829389.

The spelling of 551610065 in words is "five hundred fifty-one million, six hundred ten thousand, sixty-five".