55229825 has 12 divisors (see below), whose sum is σ = 78268800. Its totient is φ = 37871760.

The previous prime is 55229813. The next prime is 55229849. The reversal of 55229825 is 52892255.

55229825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55229825 - 2⁴ = 55229809 is a prime.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 157625 + ... + 157974.

It is an arithmetic number, because the mean of its divisors is an integer number (6522400).

Almost surely, 2^55229825 is an apocalyptic number.

It is an amenable number.

55229825 is a deficient number, since it is larger than the sum of its proper divisors (23038975).

55229825 is a wasteful number, since it uses less digits than its factorization.

55229825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315616 (or 315611 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The square root of 55229825 is about 7431.6771323840. The cubic root of 55229825 is about 380.8242151505.

The spelling of 55229825 in words is "fifty-five million, two hundred twenty-nine thousand, eight hundred twenty-five".