551767841 has 4 divisors (see below), whose sum is σ = 552262932. Its totient is φ = 551272752.

The previous prime is 551767831. The next prime is 551767849. The reversal of 551767841 is 148767155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148767155 = 5 ⋅29753431.

It can be written as a sum of positive squares in 2 ways, for example, as 142110241 + 409657600 = 11921^2 + 20240^2 .

It is a cyclic number.

It is not a de Polignac number, because 551767841 - 2¹⁴ = 551751457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 551767792 and 551767801.

It is not an unprimeable number, because it can be changed into a prime (551767849) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 245870 + ... + 248103.

It is an arithmetic number, because the mean of its divisors is an integer number (138065733).

Almost surely, 2^551767841 is an apocalyptic number.

It is an amenable number.

551767841 is a deficient number, since it is larger than the sum of its proper divisors (495091).

551767841 is a wasteful number, since it uses less digits than its factorization.

551767841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495090.

The product of its digits is 235200, while the sum is 44.

The square root of 551767841 is about 23489.7390577248. The cubic root of 551767841 is about 820.1981679490.

The spelling of 551767841 in words is "five hundred fifty-one million, seven hundred sixty-seven thousand, eight hundred forty-one".