2548421 has 2 divisors, whose sum is σ = 2548422. Its totient is φ = 2548420.

The previous prime is 2548409. The next prime is 2548459. The reversal of 2548421 is 1248452.

It is a happy number.

2548421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2464900 + 83521 = 1570^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2548421 - 2¹⁰ = 2547397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2548621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274210 + 1274211.

It is an arithmetic number, because the mean of its divisors is an integer number (1274211).

2^2548421 is an apocalyptic number.

It is an amenable number.

2548421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2548421 is an equidigital number, since it uses as much as digits as its factorization.

2548421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 26.

The square root of 2548421 is about 1596.3774616299. The cubic root of 2548421 is about 136.5915159576.

The spelling of 2548421 in words is "two million, five hundred forty-eight thousand, four hundred twenty-one".