548881919 has 2 divisors, whose sum is σ = 548881920. Its totient is φ = 548881918.

The previous prime is 548881909. The next prime is 548881951. The reversal of 548881919 is 919188845.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548881919 is a prime.

It is a super-2 number, since 2×548881919² = 602542722010245122, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548881909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274440959 + 274440960.

It is an arithmetic number, because the mean of its divisors is an integer number (274440960).

Almost surely, 2^548881919 is an apocalyptic number.

548881919 is a deficient number, since it is larger than the sum of its proper divisors (1).

548881919 is an equidigital number, since it uses as much as digits as its factorization.

548881919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 53.

The square root of 548881919 is about 23428.2291050775. The cubic root of 548881919 is about 818.7657015111.

The spelling of 548881919 in words is "five hundred forty-eight million, eight hundred eighty-one thousand, nine hundred nineteen".