25550923 has 2 divisors, whose sum is σ = 25550924. Its totient is φ = 25550922.

The previous prime is 25550857. The next prime is 25550927. The reversal of 25550923 is 32905552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25550923 - 2⁹ = 25550411 is a prime.

It is not a weakly prime, because it can be changed into another prime (25550927) 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, 12775461 + 12775462.

It is an arithmetic number, because the mean of its divisors is an integer number (12775462).

Almost surely, 2^25550923 is an apocalyptic number.

25550923 is a deficient number, since it is larger than the sum of its proper divisors (1).

25550923 is an equidigital number, since it uses as much as digits as its factorization.

25550923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 25550923 is about 5054.7920827666. The cubic root of 25550923 is about 294.5340648149.

The spelling of 25550923 in words is "twenty-five million, five hundred fifty thousand, nine hundred twenty-three".