25557127 has 2 divisors, whose sum is σ = 25557128. Its totient is φ = 25557126.

The previous prime is 25557101. The next prime is 25557157. The reversal of 25557127 is 72175552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25557127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25557092 and 25557101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25557157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12778563 + 12778564.

It is an arithmetic number, because the mean of its divisors is an integer number (12778564).

Almost surely, 2^25557127 is an apocalyptic number.

25557127 is a deficient number, since it is larger than the sum of its proper divisors (1).

25557127 is an equidigital number, since it uses as much as digits as its factorization.

25557127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24500, while the sum is 34.

The square root of 25557127 is about 5055.4057206123. The cubic root of 25557127 is about 294.5579014158.

The spelling of 25557127 in words is "twenty-five million, five hundred fifty-seven thousand, one hundred twenty-seven".