549616845 has 16 divisors (see below), whose sum is σ = 909711360. Its totient is φ = 283020864.

The previous prime is 549616811. The next prime is 549616867. The reversal of 549616845 is 548616945.

It is not a de Polignac number, because 549616845 - 2¹⁰ = 549615821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549616794 and 549616803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631309 + ... + 632178.

It is an arithmetic number, because the mean of its divisors is an integer number (56856960).

Almost surely, 2^549616845 is an apocalyptic number.

It is an amenable number.

549616845 is a deficient number, since it is larger than the sum of its proper divisors (360094515).

549616845 is a wasteful number, since it uses less digits than its factorization.

549616845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263524.

The product of its digits is 1036800, while the sum is 48.

The square root of 549616845 is about 23443.9084838685. The cubic root of 549616845 is about 819.1309675896.

The spelling of 549616845 in words is "five hundred forty-nine million, six hundred sixteen thousand, eight hundred forty-five".