25479523 has 2 divisors, whose sum is σ = 25479524. Its totient is φ = 25479522.

The previous prime is 25479479. The next prime is 25479527. The reversal of 25479523 is 32597452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25479523 - 2⁹ = 25479011 is a prime.

It is not a weakly prime, because it can be changed into another prime (25479527) 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, 12739761 + 12739762.

It is an arithmetic number, because the mean of its divisors is an integer number (12739762).

Almost surely, 2^25479523 is an apocalyptic number.

25479523 is a deficient number, since it is larger than the sum of its proper divisors (1).

25479523 is an equidigital number, since it uses as much as digits as its factorization.

25479523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 25479523 is about 5047.7245368582. The cubic root of 25479523 is about 294.2594582795.

The spelling of 25479523 in words is "twenty-five million, four hundred seventy-nine thousand, five hundred twenty-three".