548278313 has 4 divisors (see below), whose sum is σ = 598121808. Its totient is φ = 498434820.

The previous prime is 548278279. The next prime is 548278319. The reversal of 548278313 is 313872845.

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 548278313 - 2¹⁸ = 548016169 is a prime.

It is a super-2 number, since 2×548278313² = 601218217012251938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548278319) 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, 24921731 + ... + 24921752.

It is an arithmetic number, because the mean of its divisors is an integer number (149530452).

Almost surely, 2^548278313 is an apocalyptic number.

It is an amenable number.

548278313 is a deficient number, since it is larger than the sum of its proper divisors (49843495).

548278313 is a wasteful number, since it uses less digits than its factorization.

548278313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49843494.

The product of its digits is 161280, while the sum is 41.

The square root of 548278313 is about 23415.3435379454. The cubic root of 548278313 is about 818.4654589359.

The spelling of 548278313 in words is "five hundred forty-eight million, two hundred seventy-eight thousand, three hundred thirteen".