25755505 has 8 divisors (see below), whose sum is σ = 31213224. Its totient is φ = 20400000.

The previous prime is 25755497. The next prime is 25755523. The reversal of 25755505 is 50555752.

It can be written as a sum of positive squares in 4 ways, for example, as 12730624 + 13024881 = 3568^2 + 3609^2 .

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

It is not a de Polignac number, because 25755505 - 2³ = 25755497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24996 + ... + 26005.

It is an arithmetic number, because the mean of its divisors is an integer number (3901653).

Almost surely, 2^25755505 is an apocalyptic number.

It is an amenable number.

25755505 is a deficient number, since it is larger than the sum of its proper divisors (5457719).

25755505 is a wasteful number, since it uses less digits than its factorization.

25755505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51107.

The product of its (nonzero) digits is 43750, while the sum is 34.

The square root of 25755505 is about 5074.9881773261. The cubic root of 25755505 is about 295.3180711788.

The spelling of 25755505 in words is "twenty-five million, seven hundred fifty-five thousand, five hundred five".