53885725 has 6 divisors (see below), whose sum is σ = 66818330. Its totient is φ = 43108560.

The previous prime is 53885707. The next prime is 53885743. The reversal of 53885725 is 52758835.

It is an interprime number because it is at equal distance from previous prime (53885707) and next prime (53885743).

It can be written as a sum of positive squares in 3 ways, for example, as 3034564 + 50851161 = 1742^2 + 7131^2 .

It is not a de Polignac number, because 53885725 - 2⁵ = 53885693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1077690 + ... + 1077739.

Almost surely, 2^53885725 is an apocalyptic number.

It is an amenable number.

53885725 is a deficient number, since it is larger than the sum of its proper divisors (12932605).

53885725 is a wasteful number, since it uses less digits than its factorization.

53885725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155439 (or 2155434 counting only the distinct ones).

The product of its digits is 336000, while the sum is 43.

The square root of 53885725 is about 7340.6896814945. The cubic root of 53885725 is about 377.7095017102.

The spelling of 53885725 in words is "fifty-three million, eight hundred eighty-five thousand, seven hundred twenty-five".