548421251 has 4 divisors (see below), whose sum is σ = 626767152. Its totient is φ = 470075352.

The previous prime is 548421227. The next prime is 548421257. The reversal of 548421251 is 152124845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152124845 = 5 ⋅30424969.

It is a cyclic number.

It is not a de Polignac number, because 548421251 - 2¹⁴ = 548404867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548421257) 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, 39172940 + ... + 39172953.

It is an arithmetic number, because the mean of its divisors is an integer number (156691788).

Almost surely, 2^548421251 is an apocalyptic number.

548421251 is a deficient number, since it is larger than the sum of its proper divisors (78345901).

548421251 is an equidigital number, since it uses as much as digits as its factorization.

548421251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78345900.

The product of its digits is 12800, while the sum is 32.

The square root of 548421251 is about 23418.3955684415. The cubic root of 548421251 is about 818.5365783218.

The spelling of 548421251 in words is "five hundred forty-eight million, four hundred twenty-one thousand, two hundred fifty-one".