25507723 has 2 divisors, whose sum is σ = 25507724. Its totient is φ = 25507722.

The previous prime is 25507721. The next prime is 25507777. The reversal of 25507723 is 32770552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25507723 - 2¹ = 25507721 is a prime.

Together with 25507721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25507721) 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, 12753861 + 12753862.

It is an arithmetic number, because the mean of its divisors is an integer number (12753862).

Almost surely, 2^25507723 is an apocalyptic number.

25507723 is a deficient number, since it is larger than the sum of its proper divisors (1).

25507723 is an equidigital number, since it uses as much as digits as its factorization.

25507723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 25507723 is about 5050.5171022381. The cubic root of 25507723 is about 294.3679775432.

The spelling of 25507723 in words is "twenty-five million, five hundred seven thousand, seven hundred twenty-three".