25551755 has 16 divisors (see below), whose sum is σ = 31877280. Its totient is φ = 19638528.

The previous prime is 25551739. The next prime is 25551769. The reversal of 25551755 is 55715552.

It is a cyclic number.

It is not a de Polignac number, because 25551755 - 2⁴ = 25551739 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, 45104 + ... + 45666.

It is an arithmetic number, because the mean of its divisors is an integer number (1992330).

Almost surely, 2^25551755 is an apocalyptic number.

25551755 is a deficient number, since it is larger than the sum of its proper divisors (6325525).

25551755 is a wasteful number, since it uses less digits than its factorization.

25551755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910.

The product of its digits is 43750, while the sum is 35.

The square root of 25551755 is about 5054.8743802393. The cubic root of 25551755 is about 294.5372616946.

The spelling of 25551755 in words is "twenty-five million, five hundred fifty-one thousand, seven hundred fifty-five".