53135653 has 4 divisors (see below), whose sum is σ = 53157708. Its totient is φ = 53113600.

The previous prime is 53135639. The next prime is 53135701. The reversal of 53135653 is 35653135.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41177889 + 11957764 = 6417^2 + 3458^2 .

It is a cyclic number.

It is not a de Polignac number, because 53135653 - 2⁹ = 53135141 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53135603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6898 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (13289427).

Almost surely, 2^53135653 is an apocalyptic number.

It is an amenable number.

53135653 is a deficient number, since it is larger than the sum of its proper divisors (22055).

53135653 is a wasteful number, since it uses less digits than its factorization.

53135653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22054.

The product of its digits is 20250, while the sum is 31.

The square root of 53135653 is about 7289.4206216955. The cubic root of 53135653 is about 375.9487749931.

Adding to 53135653 its reverse (35653135), we get a palindrome (88788788).

The spelling of 53135653 in words is "fifty-three million, one hundred thirty-five thousand, six hundred fifty-three".