548735489 has 4 divisors (see below), whose sum is σ = 549065940. Its totient is φ = 548405040.

The previous prime is 548735479. The next prime is 548735497. The reversal of 548735489 is 984537845.

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 313573264 + 235162225 = 17708^2 + 15335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548735489 is a prime.

It is a super-2 number, since 2×548735489² = 602221273776138242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 548735489.

It is not an unprimeable number, because it can be changed into a prime (548735479) 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, 162722 + ... + 166059.

It is an arithmetic number, because the mean of its divisors is an integer number (137266485).

Almost surely, 2^548735489 is an apocalyptic number.

It is an amenable number.

548735489 is a deficient number, since it is larger than the sum of its proper divisors (330451).

548735489 is a wasteful number, since it uses less digits than its factorization.

548735489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330450.

The product of its digits is 4838400, while the sum is 53.

The square root of 548735489 is about 23425.1038204743. The cubic root of 548735489 is about 818.6928852880.

The spelling of 548735489 in words is "five hundred forty-eight million, seven hundred thirty-five thousand, four hundred eighty-nine".