55200025 has 12 divisors (see below), whose sum is σ = 69219900. Its totient is φ = 43662080.

The previous prime is 55200011. The next prime is 55200053. The reversal of 55200025 is 52000255.

It can be written as a sum of positive squares in 6 ways, for example, as 484416 + 54715609 = 696^2 + 7397^2 .

It is not a de Polignac number, because 55200025 - 2⁵ = 55199993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55199975 and 55200011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10180 + ... + 14629.

It is an arithmetic number, because the mean of its divisors is an integer number (5768325).

Almost surely, 2^55200025 is an apocalyptic number.

It is an amenable number.

55200025 is a deficient number, since it is larger than the sum of its proper divisors (14019875).

55200025 is a wasteful number, since it uses less digits than its factorization.

55200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24908 (or 24903 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 55200025 is about 7429.6719308459. The cubic root of 55200025 is about 380.7557098739.

The spelling of 55200025 in words is "fifty-five million, two hundred thousand, twenty-five".