25501423 has 2 divisors, whose sum is σ = 25501424. Its totient is φ = 25501422.

The previous prime is 25501391. The next prime is 25501429. The reversal of 25501423 is 32410552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25501423 - 2⁵ = 25501391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25501394 and 25501403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25501429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750711 + 12750712.

It is an arithmetic number, because the mean of its divisors is an integer number (12750712).

Almost surely, 2^25501423 is an apocalyptic number.

25501423 is a deficient number, since it is larger than the sum of its proper divisors (1).

25501423 is an equidigital number, since it uses as much as digits as its factorization.

25501423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25501423 is about 5049.8933652108. The cubic root of 25501423 is about 294.3437408188.

Adding to 25501423 its reverse (32410552), we get a palindrome (57911975).

The spelling of 25501423 in words is "twenty-five million, five hundred one thousand, four hundred twenty-three".