551677745 has 16 divisors (see below), whose sum is σ = 681935232. Its totient is φ = 428198400.

The previous prime is 551677741. The next prime is 551677751. The reversal of 551677745 is 547776155.

551677745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551677745 - 2² = 551677741 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551677745.

It is not an unprimeable number, because it can be changed into a prime (551677741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23969 + ... + 40961.

It is an arithmetic number, because the mean of its divisors is an integer number (42620952).

Almost surely, 2^551677745 is an apocalyptic number.

It is an amenable number.

551677745 is a deficient number, since it is larger than the sum of its proper divisors (130257487).

551677745 is a wasteful number, since it uses less digits than its factorization.

551677745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17192.

The product of its digits is 1029000, while the sum is 47.

The square root of 551677745 is about 23487.8212058931. The cubic root of 551677745 is about 820.1535232083.

The spelling of 551677745 in words is "five hundred fifty-one million, six hundred seventy-seven thousand, seven hundred forty-five".