53135525 has 12 divisors (see below), whose sum is σ = 66134532. Its totient is φ = 42349440.

The previous prime is 53135507. The next prime is 53135527. The reversal of 53135525 is 52553135.

It can be written as a sum of positive squares in 6 ways, for example, as 3334276 + 49801249 = 1826^2 + 7057^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53135525 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 (53135527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3089 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (5511211).

Almost surely, 2^53135525 is an apocalyptic number.

It is an amenable number.

53135525 is a deficient number, since it is larger than the sum of its proper divisors (12999007).

53135525 is a wasteful number, since it uses less digits than its factorization.

53135525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960 (or 7955 counting only the distinct ones).

The product of its digits is 11250, while the sum is 29.

The square root of 53135525 is about 7289.4118418429. The cubic root of 53135525 is about 375.9484731149.

The spelling of 53135525 in words is "fifty-three million, one hundred thirty-five thousand, five hundred twenty-five".