53074143509 has 4 divisors (see below), whose sum is σ = 53138790060. Its totient is φ = 53009496960.

The previous prime is 53074143467. The next prime is 53074143539. The reversal of 53074143509 is 90534147035.

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 28816081009 + 24258062500 = 169753^2 + 155750^2 .

It is a cyclic number.

It is not a de Polignac number, because 53074143509 - 2²⁰ = 53073094933 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 (53074143539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32322044 + ... + 32323685.

It is an arithmetic number, because the mean of its divisors is an integer number (13284697515).

Almost surely, 2^53074143509 is an apocalyptic number.

It is an amenable number.

53074143509 is a deficient number, since it is larger than the sum of its proper divisors (64646551).

53074143509 is an equidigital number, since it uses as much as digits as its factorization.

53074143509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64646550.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 53074143509 in words is "fifty-three billion, seventy-four million, one hundred forty-three thousand, five hundred nine".