25124123 has 2 divisors, whose sum is σ = 25124124. Its totient is φ = 25124122.

The previous prime is 25124117. The next prime is 25124149. The reversal of 25124123 is 32142152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25124123 - 2¹⁰ = 25123099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25124095 and 25124104.

It is not a weakly prime, because it can be changed into another prime (25124423) 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, 12562061 + 12562062.

It is an arithmetic number, because the mean of its divisors is an integer number (12562062).

Almost surely, 2^25124123 is an apocalyptic number.

25124123 is a deficient number, since it is larger than the sum of its proper divisors (1).

25124123 is an equidigital number, since it uses as much as digits as its factorization.

25124123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 20.

The square root of 25124123 is about 5012.3969316087. The cubic root of 25124123 is about 292.8848922914.

Adding to 25124123 its reverse (32142152), we get a palindrome (57266275).

The spelling of 25124123 in words is "twenty-five million, one hundred twenty-four thousand, one hundred twenty-three".