25785055 has 8 divisors (see below), whose sum is σ = 30979872. Its totient is φ = 20602848.

The previous prime is 25785043. The next prime is 25785059. The reversal of 25785055 is 55058752.

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 25785055 - 2⁹ = 25784543 is a prime.

It is a super-2 number, since 2×25785055² = 1329738122706050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25785059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (3872484).

Almost surely, 2^25785055 is an apocalyptic number.

25785055 is a deficient number, since it is larger than the sum of its proper divisors (5194817).

25785055 is an equidigital number, since it uses as much as digits as its factorization.

25785055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305.

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 25785055 is about 5077.8986795721. The cubic root of 25785055 is about 295.4309701971.

The spelling of 25785055 in words is "twenty-five million, seven hundred eighty-five thousand, fifty-five".