549856801 has 4 divisors (see below), whose sum is σ = 592153492. Its totient is φ = 507560112.

The previous prime is 549856793. The next prime is 549856859. The reversal of 549856801 is 108658945.

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

It can be written as a sum of positive squares in 2 ways, for example, as 107848225 + 442008576 = 10385^2 + 21024^2 .

It is a cyclic number.

It is not a de Polignac number, because 549856801 - 2³ = 549856793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549850801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21148326 + ... + 21148351.

It is an arithmetic number, because the mean of its divisors is an integer number (148038373).

Almost surely, 2^549856801 is an apocalyptic number.

It is an amenable number.

549856801 is a deficient number, since it is larger than the sum of its proper divisors (42296691).

549856801 is a wasteful number, since it uses less digits than its factorization.

549856801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42296690.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 549856801 is about 23449.0255874311. The cubic root of 549856801 is about 819.2501577700.

The spelling of 549856801 in words is "five hundred forty-nine million, eight hundred fifty-six thousand, eight hundred one".