25578055 has 8 divisors (see below), whose sum is σ = 31442544. Its totient is φ = 19963200.

The previous prime is 25578043. The next prime is 25578071. The reversal of 25578055 is 55087552.

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

It is not a de Polignac number, because 25578055 - 2¹⁷ = 25446983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 62181 + ... + 62590.

It is an arithmetic number, because the mean of its divisors is an integer number (3930318).

Almost surely, 2^25578055 is an apocalyptic number.

25578055 is a deficient number, since it is larger than the sum of its proper divisors (5864489).

25578055 is a wasteful number, since it uses less digits than its factorization.

25578055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124817.

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

The square root of 25578055 is about 5057.4751605915. The cubic root of 25578055 is about 294.6382811585.

The spelling of 25578055 in words is "twenty-five million, five hundred seventy-eight thousand, fifty-five".