548915971 has 4 divisors (see below), whose sum is σ = 553238272. Its totient is φ = 544593672.

The previous prime is 548915963. The next prime is 548915987. The reversal of 548915971 is 179519845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179519845 = 5 ⋅35903969.

It is a cyclic number.

It is not a de Polignac number, because 548915971 - 2³ = 548915963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548912971) 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, 2160960 + ... + 2161213.

It is an arithmetic number, because the mean of its divisors is an integer number (138309568).

Almost surely, 2^548915971 is an apocalyptic number.

548915971 is a deficient number, since it is larger than the sum of its proper divisors (4322301).

548915971 is a wasteful number, since it uses less digits than its factorization.

548915971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322300.

The product of its digits is 453600, while the sum is 49.

The square root of 548915971 is about 23428.9558239372. The cubic root of 548915971 is about 818.7826329203.

The spelling of 548915971 in words is "five hundred forty-eight million, nine hundred fifteen thousand, nine hundred seventy-one".