53540520213 has 4 divisors (see below), whose sum is σ = 71387360288. Its totient is φ = 35693680140.

The previous prime is 53540520203. The next prime is 53540520233. The reversal of 53540520213 is 31202504535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53540520213 - 2⁵ = 53540520181 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 (53540520203) 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, 8923420033 + ... + 8923420038.

It is an arithmetic number, because the mean of its divisors is an integer number (17846840072).

Almost surely, 2^53540520213 is an apocalyptic number.

It is an amenable number.

53540520213 is a deficient number, since it is larger than the sum of its proper divisors (17846840075).

53540520213 is a wasteful number, since it uses less digits than its factorization.

53540520213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17846840074.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 53540520213 in words is "fifty-three billion, five hundred forty million, five hundred twenty thousand, two hundred thirteen".