55212325 has 24 divisors (see below), whose sum is σ = 80367872. Its totient is φ = 36832320.

The previous prime is 55212299. The next prime is 55212331. The reversal of 55212325 is 52321255.

It is a happy number.

55212325 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 55212325 - 2⁵ = 55212293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55212325.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 2212 + ... + 10738.

Almost surely, 2^55212325 is an apocalyptic number.

It is an amenable number.

55212325 is a deficient number, since it is larger than the sum of its proper divisors (25155547).

55212325 is a wasteful number, since it uses less digits than its factorization.

55212325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8581 (or 8576 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 55212325 is about 7430.4996467263. The cubic root of 55212325 is about 380.7839885291.

The spelling of 55212325 in words is "fifty-five million, two hundred twelve thousand, three hundred twenty-five".