53725185 has 24 divisors (see below), whose sum is σ = 98602920. Its totient is φ = 26967552.

The previous prime is 53725181. The next prime is 53725187. The reversal of 53725185 is 58152735.

It can be written as a sum of positive squares in 4 ways, for example, as 30569841 + 23155344 = 5529^2 + 4812^2 .

It is not a de Polignac number, because 53725185 - 2² = 53725181 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53725181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34350 + ... + 35879.

It is an arithmetic number, because the mean of its divisors is an integer number (4108455).

Almost surely, 2^53725185 is an apocalyptic number.

It is an amenable number.

53725185 is a deficient number, since it is larger than the sum of its proper divisors (44877735).

53725185 is a wasteful number, since it uses less digits than its factorization.

53725185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70257 (or 70254 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 53725185 is about 7329.7465849782. The cubic root of 53725185 is about 377.3340293459.

The spelling of 53725185 in words is "fifty-three million, seven hundred twenty-five thousand, one hundred eighty-five".