548355889 has 3 divisors (see below), whose sum is σ = 548379307. Its totient is φ = 548332472.

The previous prime is 548355883. The next prime is 548355959. The reversal of 548355889 is 988553845.

The square root of 548355889 is 23417.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 231800625 + 316555264 = 15225^2 + 17792^2 .

It is not a de Polignac number, because 548355889 - 2³ = 548355881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548355881) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11709 + ... + 35125.

Almost surely, 2^548355889 is an apocalyptic number.

548355889 is the 23417-th square number.

548355889 is the 11709-th centered octagonal number.

It is an amenable number.

548355889 is a deficient number, since it is larger than the sum of its proper divisors (23418).

548355889 is an frugal number, since it uses more digits than its factorization.

548355889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46834 (or 23417 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 55.

The cubic root of 548355889 is about 818.5040587252.

The spelling of 548355889 in words is "five hundred forty-eight million, three hundred fifty-five thousand, eight hundred eighty-nine".