53516225 has 24 divisors (see below), whose sum is σ = 76602240. Its totient is φ = 36328320.

The previous prime is 53516201. The next prime is 53516231. The reversal of 53516225 is 52261535.

It is a happy number.

It is not a de Polignac number, because 53516225 - 2¹⁴ = 53499841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16541 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (3191760).

Almost surely, 2^53516225 is an apocalyptic number.

It is an amenable number.

53516225 is a deficient number, since it is larger than the sum of its proper divisors (23086015).

53516225 is a wasteful number, since it uses less digits than its factorization.

53516225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089 (or 3084 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 53516225 is about 7315.4784532524. The cubic root of 53516225 is about 376.8441897776.

The spelling of 53516225 in words is "fifty-three million, five hundred sixteen thousand, two hundred twenty-five".