25001423 has 4 divisors (see below), whose sum is σ = 25077288. Its totient is φ = 24925560.

The previous prime is 25001401. The next prime is 25001453. The reversal of 25001423 is 32410052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25001423 - 2⁸ = 25001167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37436 + ... + 38097.

It is an arithmetic number, because the mean of its divisors is an integer number (6269322).

Almost surely, 2^25001423 is an apocalyptic number.

25001423 is a deficient number, since it is larger than the sum of its proper divisors (75865).

25001423 is an equidigital number, since it uses as much as digits as its factorization.

25001423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75864.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25001423 is about 5000.1422979751. The cubic root of 25001423 is about 292.4073215524.

Adding to 25001423 its reverse (32410052), we get a palindrome (57411475).

The spelling of 25001423 in words is "twenty-five million, one thousand, four hundred twenty-three".