25550055 has 12 divisors (see below), whose sum is σ = 44286840. Its totient is φ = 13626672.

The previous prime is 25550039. The next prime is 25550059. The reversal of 25550055 is 55005552.

It is a happy number.

It is not a de Polignac number, because 25550055 - 2⁴ = 25550039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25550059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283845 + ... + 283934.

It is an arithmetic number, because the mean of its divisors is an integer number (3690570).

Almost surely, 2^25550055 is an apocalyptic number.

25550055 is a deficient number, since it is larger than the sum of its proper divisors (18736785).

25550055 is a wasteful number, since it uses less digits than its factorization.

25550055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567790 (or 567787 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The square root of 25550055 is about 5054.7062229174. The cubic root of 25550055 is about 294.5307295347.

The spelling of 25550055 in words is "twenty-five million, five hundred fifty thousand, fifty-five".