53513220402253 has 4 divisors (see below), whose sum is σ = 53521168310428. Its totient is φ = 53505272494080.

The previous prime is 53513220402221. The next prime is 53513220402259. The reversal of 53513220402253 is 35220402231535.

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 39736154610244 + 13777065792009 = 6303662^2 + 3711747^2 .

It is a cyclic number.

It is not a de Polignac number, because 53513220402253 - 2⁵ = 53513220402221 is a prime.

It is a super-2 number, since 2×53513220402253² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53513220402259) 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, 3973943988 + ... + 3973957453.

It is an arithmetic number, because the mean of its divisors is an integer number (13380292077607).

Almost surely, 2^{53513220402253} is an apocalyptic number.

It is an amenable number.

53513220402253 is a deficient number, since it is larger than the sum of its proper divisors (7947908175).

53513220402253 is an equidigital number, since it uses as much as digits as its factorization.

53513220402253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947908174.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 53513220402253 its reverse (35220402231535), we get a palindrome (88733622633788).

The spelling of 53513220402253 in words is "fifty-three trillion, five hundred thirteen billion, two hundred twenty million, four hundred two thousand, two hundred fifty-three".