25100123 has 2 divisors, whose sum is σ = 25100124. Its totient is φ = 25100122.

The previous prime is 25100087. The next prime is 25100129. The reversal of 25100123 is 32100152.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25100123 - 2⁶ = 25100059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25100098 and 25100107.

It is not a weakly prime, because it can be changed into another prime (25100129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12550061 + 12550062.

It is an arithmetic number, because the mean of its divisors is an integer number (12550062).

Almost surely, 2^25100123 is an apocalyptic number.

25100123 is a deficient number, since it is larger than the sum of its proper divisors (1).

25100123 is an equidigital number, since it uses as much as digits as its factorization.

25100123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 25100123 is about 5010.0022954087. The cubic root of 25100123 is about 292.7916024434.

Adding to 25100123 its reverse (32100152), we get a palindrome (57200275).

The spelling of 25100123 in words is "twenty-five million, one hundred thousand, one hundred twenty-three".