25005527 has 2 divisors, whose sum is σ = 25005528. Its totient is φ = 25005526.

The previous prime is 25005517. The next prime is 25005553. The reversal of 25005527 is 72550052.

It is an a-pointer prime, because the next prime (25005553) can be obtained adding 25005527 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25005527 - 2¹⁴ = 24989143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25005496 and 25005505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25005517) 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, 12502763 + 12502764.

It is an arithmetic number, because the mean of its divisors is an integer number (12502764).

Almost surely, 2^25005527 is an apocalyptic number.

25005527 is a deficient number, since it is larger than the sum of its proper divisors (1).

25005527 is an equidigital number, since it uses as much as digits as its factorization.

25005527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 25005527 is about 5000.5526694556. The cubic root of 25005527 is about 292.4233202949.

Adding to 25005527 its reverse (72550052), we get a palindrome (97555579).

The spelling of 25005527 in words is "twenty-five million, five thousand, five hundred twenty-seven".