548765881 has 4 divisors (see below), whose sum is σ = 549509200. Its totient is φ = 548022564.

The previous prime is 548765851. The next prime is 548765891. The reversal of 548765881 is 188567845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 548765881 - 2¹³ = 548757689 is a prime.

It is a super-2 number, since 2×548765881² = 602287984299412322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548765851) 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, 370551 + ... + 372028.

It is an arithmetic number, because the mean of its divisors is an integer number (137377300).

Almost surely, 2^548765881 is an apocalyptic number.

It is an amenable number.

548765881 is a deficient number, since it is larger than the sum of its proper divisors (743319).

548765881 is an equidigital number, since it uses as much as digits as its factorization.

548765881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743318.

The product of its digits is 2150400, while the sum is 52.

The square root of 548765881 is about 23425.7525172619. The cubic root of 548765881 is about 818.7079995859.

The spelling of 548765881 in words is "five hundred forty-eight million, seven hundred sixty-five thousand, eight hundred eighty-one".