53517225 has 12 divisors (see below), whose sum is σ = 88481936. Its totient is φ = 28542480.

The previous prime is 53517223. The next prime is 53517239. The reversal of 53517225 is 52271535.

53517225 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 53517225 - 2¹ = 53517223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53517192 and 53517201.

It is not an unprimeable number, because it can be changed into a prime (53517223) by changing a digit.

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, 356707 + ... + 356856.

Almost surely, 2^53517225 is an apocalyptic number.

It is an amenable number.

53517225 is a deficient number, since it is larger than the sum of its proper divisors (34964711).

53517225 is a wasteful number, since it uses less digits than its factorization.

53517225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713576 (or 713571 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 53517225 is about 7315.5468011626. The cubic root of 53517225 is about 376.8465369900.

The spelling of 53517225 in words is "fifty-three million, five hundred seventeen thousand, two hundred twenty-five".