53453143237 has 4 divisors (see below), whose sum is σ = 57564923500. Its totient is φ = 49341362976.

The previous prime is 53453143127. The next prime is 53453143259. The reversal of 53453143237 is 73234135435.

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 30936940321 + 22516202916 = 175889^2 + 150054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53453143237 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 53453143237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53453143277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2055890112 + ... + 2055890137.

It is an arithmetic number, because the mean of its divisors is an integer number (14391230875).

Almost surely, 2^53453143237 is an apocalyptic number.

It is an amenable number.

53453143237 is a deficient number, since it is larger than the sum of its proper divisors (4111780263).

53453143237 is a wasteful number, since it uses less digits than its factorization.

53453143237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111780262.

The product of its digits is 453600, while the sum is 40.

The spelling of 53453143237 in words is "fifty-three billion, four hundred fifty-three million, one hundred forty-three thousand, two hundred thirty-seven".