25783955 has 8 divisors (see below), whose sum is σ = 30996000. Its totient is φ = 20590336.

The previous prime is 25783949. The next prime is 25783981. The reversal of 25783955 is 55938752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25783955 - 2⁸ = 25783699 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 7 ways as a sum of consecutive naturals, for example, 1310 + ... + 7299.

It is an arithmetic number, because the mean of its divisors is an integer number (3874500).

Almost surely, 2^25783955 is an apocalyptic number.

25783955 is a deficient number, since it is larger than the sum of its proper divisors (5212045).

25783955 is an equidigital number, since it uses as much as digits as its factorization.

25783955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9213.

The product of its digits is 378000, while the sum is 44.

The square root of 25783955 is about 5077.7903658974. The cubic root of 25783955 is about 295.4267690725.

The spelling of 25783955 in words is "twenty-five million, seven hundred eighty-three thousand, nine hundred fifty-five".