25550655 has 32 divisors (see below), whose sum is σ = 44276736. Its totient is φ = 12507264.

The previous prime is 25550641. The next prime is 25550663. The reversal of 25550655 is 55605552.

It is not a de Polignac number, because 25550655 - 2⁹ = 25550143 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54954 + ... + 55416.

It is an arithmetic number, because the mean of its divisors is an integer number (1383648).

Almost surely, 2^25550655 is an apocalyptic number.

25550655 is a deficient number, since it is larger than the sum of its proper divisors (18726081).

25550655 is a wasteful number, since it uses less digits than its factorization.

25550655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its (nonzero) digits is 37500, while the sum is 33.

The square root of 25550655 is about 5054.7655731992. The cubic root of 25550655 is about 294.5330350360.

The spelling of 25550655 in words is "twenty-five million, five hundred fifty thousand, six hundred fifty-five".