53658787213 has 4 divisors (see below), whose sum is σ = 53673399868. Its totient is φ = 53644174560.

The previous prime is 53658787211. The next prime is 53658787249. The reversal of 53658787213 is 31278785635.

53658787213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 30436989444 + 23221797769 = 174462^2 + 152387^2 .

It is a cyclic number.

It is not a de Polignac number, because 53658787213 - 2¹ = 53658787211 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 (53658787211) 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, 7300818 + ... + 7308163.

It is an arithmetic number, because the mean of its divisors is an integer number (13418349967).

Almost surely, 2^53658787213 is an apocalyptic number.

It is an amenable number.

53658787213 is a deficient number, since it is larger than the sum of its proper divisors (14612655).

53658787213 is a wasteful number, since it uses less digits than its factorization.

53658787213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14612654.

The product of its digits is 8467200, while the sum is 55.

The spelling of 53658787213 in words is "fifty-three billion, six hundred fifty-eight million, seven hundred eighty-seven thousand, two hundred thirteen".