55235225 has 6 divisors (see below), whose sum is σ = 68491710. Its totient is φ = 44188160.

The previous prime is 55235209. The next prime is 55235251. The reversal of 55235225 is 52253255.

55235225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 8886361 + 46348864 = 2981^2 + 6808^2 .

It is not a de Polignac number, because 55235225 - 2⁴ = 55235209 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 5 ways as a sum of consecutive naturals, for example, 1104680 + ... + 1104729.

It is an arithmetic number, because the mean of its divisors is an integer number (11415285).

Almost surely, 2^55235225 is an apocalyptic number.

It is an amenable number.

55235225 is a deficient number, since it is larger than the sum of its proper divisors (13256485).

55235225 is a wasteful number, since it uses less digits than its factorization.

55235225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209419 (or 2209414 counting only the distinct ones).

The product of its digits is 15000, while the sum is 29.

The square root of 55235225 is about 7432.0404331516. The cubic root of 55235225 is about 380.8366262209.

The spelling of 55235225 in words is "fifty-five million, two hundred thirty-five thousand, two hundred twenty-five".