53143742354357 has 4 divisors (see below), whose sum is σ = 53187195947040. Its totient is φ = 53100288761676.

The previous prime is 53143742354347. The next prime is 53143742354369. The reversal of 53143742354357 is 75345324734135.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 53143742354357 - 2¹⁰ = 53143742353333 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 (53143742354317) 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, 21726794507 + ... + 21726796952.

It is an arithmetic number, because the mean of its divisors is an integer number (13296798986760).

Almost surely, 2^{53143742354357} is an apocalyptic number.

It is an amenable number.

53143742354357 is a deficient number, since it is larger than the sum of its proper divisors (43453592683).

53143742354357 is a wasteful number, since it uses less digits than its factorization.

53143742354357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43453592682.

The product of its digits is 63504000, while the sum is 56.

The spelling of 53143742354357 in words is "fifty-three trillion, one hundred forty-three billion, seven hundred forty-two million, three hundred fifty-four thousand, three hundred fifty-seven".