25393955 has 16 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 19349088.

The previous prime is 25393939. The next prime is 25393967. The reversal of 25393955 is 55939352.

It is a cyclic number.

It is not a de Polignac number, because 25393955 - 2⁴ = 25393939 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 50234 + ... + 50736.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 2^25393955 is an apocalyptic number.

25393955 is a deficient number, since it is larger than the sum of its proper divisors (6539485).

25393955 is a wasteful number, since it uses less digits than its factorization.

25393955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its digits is 182250, while the sum is 41.

The square root of 25393955 is about 5039.2415103863. The cubic root of 25393955 is about 293.9296845431.

The spelling of 25393955 in words is "twenty-five million, three hundred ninety-three thousand, nine hundred fifty-five".