53420113443 has 16 divisors (see below), whose sum is σ = 72019220000. Its totient is φ = 35217801216.

The previous prime is 53420113427. The next prime is 53420113451. The reversal of 53420113443 is 34431102435.

It is not a de Polignac number, because 53420113443 - 2⁴ = 53420113427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53420113443.

It is not an unprimeable number, because it can be changed into a prime (53420113403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289971 + ... + 436947.

It is an arithmetic number, because the mean of its divisors is an integer number (4501201250).

Almost surely, 2^53420113443 is an apocalyptic number.

53420113443 is a deficient number, since it is larger than the sum of its proper divisors (18599106557).

53420113443 is a wasteful number, since it uses less digits than its factorization.

53420113443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148326.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 53420113443 its reverse (34431102435), we get a palindrome (87851215878).

The spelling of 53420113443 in words is "fifty-three billion, four hundred twenty million, one hundred thirteen thousand, four hundred forty-three".