53137825 has 18 divisors (see below), whose sum is σ = 71354994. Its totient is φ = 39237120.

The previous prime is 53137811. The next prime is 53137829. The reversal of 53137825 is 52873135.

It can be written as a sum of positive squares in 9 ways, for example, as 20784481 + 32353344 = 4559^2 + 5688^2 .

It is not a de Polignac number, because 53137825 - 2¹¹ = 53135777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53137829) 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, 2064 + ... + 10513.

Almost surely, 2^53137825 is an apocalyptic number.

It is an amenable number.

53137825 is a deficient number, since it is larger than the sum of its proper divisors (18217169).

53137825 is a wasteful number, since it uses less digits than its factorization.

53137825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12613 (or 12595 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 53137825 is about 7289.5696032070. The cubic root of 53137825 is about 375.9538974144.

The spelling of 53137825 in words is "fifty-three million, one hundred thirty-seven thousand, eight hundred twenty-five".