2478523 has 2 divisors, whose sum is σ = 2478524. Its totient is φ = 2478522.

The previous prime is 2478521. The next prime is 2478527. The reversal of 2478523 is 3258742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2478523 - 2¹ = 2478521 is a prime.

It is a super-2 number, since 2×2478523² = 12286152523058, which contains 22 as substring.

Together with 2478521, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2 + 4⁵ + 7² + 8 + 5⁹ + 2¹⁹ + 3³ .

It is not a weakly prime, because it can be changed into another prime (2478521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239261 + 1239262.

It is an arithmetic number, because the mean of its divisors is an integer number (1239262).

2^2478523 is an apocalyptic number.

2478523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478523 is an equidigital number, since it uses as much as digits as its factorization.

2478523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 2478523 is about 1574.3325569904. The cubic root of 2478523 is about 135.3311122341.

The spelling of 2478523 in words is "two million, four hundred seventy-eight thousand, five hundred twenty-three".