53553325 has 18 divisors (see below), whose sum is σ = 77249706. Its totient is φ = 36721440.

The previous prime is 53553293. The next prime is 53553329. The reversal of 53553325 is 52335535.

It can be written as a sum of positive squares in 3 ways, for example, as 17816841 + 35736484 = 4221^2 + 5978^2 .

It is not a de Polignac number, because 53553325 - 2⁵ = 53553293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53553329) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20634 + ... + 23083.

Almost surely, 2^53553325 is an apocalyptic number.

It is an amenable number.

53553325 is a deficient number, since it is larger than the sum of its proper divisors (23696381).

53553325 is a wasteful number, since it uses less digits than its factorization.

53553325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43741 (or 43729 counting only the distinct ones).

The product of its digits is 33750, while the sum is 31.

The square root of 53553325 is about 7318.0137332476. The cubic root of 53553325 is about 376.9312517850.

The spelling of 53553325 in words is "fifty-three million, five hundred fifty-three thousand, three hundred twenty-five".