25506127 has 4 divisors (see below), whose sum is σ = 25855600. Its totient is φ = 25156656.

The previous prime is 25506121. The next prime is 25506157. The reversal of 25506127 is 72160552.

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 25506127 - 2³ = 25506119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25506095 and 25506104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25506121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174627 + ... + 174772.

It is an arithmetic number, because the mean of its divisors is an integer number (6463900).

Almost surely, 2^25506127 is an apocalyptic number.

25506127 is a deficient number, since it is larger than the sum of its proper divisors (349473).

25506127 is an equidigital number, since it uses as much as digits as its factorization.

25506127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349472.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 25506127 is about 5050.3590961436. The cubic root of 25506127 is about 294.3618379505.

Adding to 25506127 its reverse (72160552), we get a palindrome (97666679).

The spelling of 25506127 in words is "twenty-five million, five hundred six thousand, one hundred twenty-seven".