548500865 has 12 divisors (see below), whose sum is σ = 723477972. Its totient is φ = 398909280.

The previous prime is 548500861. The next prime is 548500879. The reversal of 548500865 is 568005845.

It can be written as a sum of positive squares in 2 ways, for example, as 273703936 + 274796929 = 16544^2 + 16577^2 .

It is not a de Polignac number, because 548500865 - 2² = 548500861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548500861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452702 + ... + 453911.

It is an arithmetic number, because the mean of its divisors is an integer number (60289831).

Almost surely, 2^548500865 is an apocalyptic number.

548500865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

548500865 is a deficient number, since it is larger than the sum of its proper divisors (174977107).

548500865 is a wasteful number, since it uses less digits than its factorization.

548500865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906640 (or 906629 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 548500865 is about 23420.0953243150. The cubic root of 548500865 is about 818.5761852346.

The spelling of 548500865 in words is "five hundred forty-eight million, five hundred thousand, eight hundred sixty-five".