53131523143 has 4 divisors (see below), whose sum is σ = 53188716240. Its totient is φ = 53074330048.

The previous prime is 53131523141. The next prime is 53131523147. The reversal of 53131523143 is 34132513135.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53131523143 - 2¹ = 53131523141 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 (53131523141) 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, 28595155 + ... + 28597012.

It is an arithmetic number, because the mean of its divisors is an integer number (13297179060).

Almost surely, 2^53131523143 is an apocalyptic number.

53131523143 is a deficient number, since it is larger than the sum of its proper divisors (57193097).

53131523143 is an equidigital number, since it uses as much as digits as its factorization.

53131523143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57193096.

The product of its digits is 16200, while the sum is 31.

The spelling of 53131523143 in words is "fifty-three billion, one hundred thirty-one million, five hundred twenty-three thousand, one hundred forty-three".