25529923 has 2 divisors, whose sum is σ = 25529924. Its totient is φ = 25529922.

The previous prime is 25529899. The next prime is 25529929. The reversal of 25529923 is 32992552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25529923 - 2⁵ = 25529891 is a prime.

It is not a weakly prime, because it can be changed into another prime (25529929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12764961 + 12764962.

It is an arithmetic number, because the mean of its divisors is an integer number (12764962).

Almost surely, 2^25529923 is an apocalyptic number.

25529923 is a deficient number, since it is larger than the sum of its proper divisors (1).

25529923 is an equidigital number, since it uses as much as digits as its factorization.

25529923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The square root of 25529923 is about 5052.7144190029. The cubic root of 25529923 is about 294.4533513490.

The spelling of 25529923 in words is "twenty-five million, five hundred twenty-nine thousand, nine hundred twenty-three".