549264553 has 4 divisors (see below), whose sum is σ = 568204740. Its totient is φ = 530324368.

The previous prime is 549264533. The next prime is 549264581. The reversal of 549264553 is 355462945.

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 452497984 + 96766569 = 21272^2 + 9837^2 .

It is a cyclic number.

It is not a de Polignac number, because 549264553 - 2²⁵ = 515710121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549264533) 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, 9470050 + ... + 9470107.

It is an arithmetic number, because the mean of its divisors is an integer number (142051185).

Almost surely, 2^549264553 is an apocalyptic number.

It is an amenable number.

549264553 is a deficient number, since it is larger than the sum of its proper divisors (18940187).

549264553 is a wasteful number, since it uses less digits than its factorization.

549264553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18940186.

The product of its digits is 648000, while the sum is 43.

The square root of 549264553 is about 23436.3937712268. The cubic root of 549264553 is about 818.9559153583.

The spelling of 549264553 in words is "five hundred forty-nine million, two hundred sixty-four thousand, five hundred fifty-three".