25000549423 has 2 divisors, whose sum is σ = 25000549424. Its totient is φ = 25000549422.

The previous prime is 25000549417. The next prime is 25000549481. The reversal of 25000549423 is 32494500052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25000549423 - 2¹⁷ = 25000418351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25000549823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500274711 + 12500274712.

It is an arithmetic number, because the mean of its divisors is an integer number (12500274712).

Almost surely, 2^25000549423 is an apocalyptic number.

25000549423 is a deficient number, since it is larger than the sum of its proper divisors (1).

25000549423 is an equidigital number, since it uses as much as digits as its factorization.

25000549423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 25000549423 in words is "twenty-five billion, five hundred forty-nine thousand, four hundred twenty-three".