53506825 has 6 divisors (see below), whose sum is σ = 66348494. Its totient is φ = 42805440.

The previous prime is 53506823. The next prime is 53506829. The reversal of 53506825 is 52860535.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14768649 + 38738176 = 3843^2 + 6224^2 .

It is not a de Polignac number, because 53506825 - 2¹ = 53506823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53506823) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1070112 + ... + 1070161.

Almost surely, 2^53506825 is an apocalyptic number.

It is an amenable number.

53506825 is a deficient number, since it is larger than the sum of its proper divisors (12841669).

53506825 is a wasteful number, since it uses less digits than its factorization.

53506825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140283 (or 2140278 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 53506825 is about 7314.8359516807. The cubic root of 53506825 is about 376.8221245515.

The spelling of 53506825 in words is "fifty-three million, five hundred six thousand, eight hundred twenty-five".