53240325143 has 4 divisors (see below), whose sum is σ = 53363282448. Its totient is φ = 53117367840.

The previous prime is 53240325137. The next prime is 53240325169. The reversal of 53240325143 is 34152304235.

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 53240325143 - 2¹⁸ = 53240062999 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 (53240325643) 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, 61478003 + ... + 61478868.

It is an arithmetic number, because the mean of its divisors is an integer number (13340820612).

Almost surely, 2^53240325143 is an apocalyptic number.

53240325143 is a deficient number, since it is larger than the sum of its proper divisors (122957305).

53240325143 is a wasteful number, since it uses less digits than its factorization.

53240325143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122957304.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 53240325143 its reverse (34152304235), we get a palindrome (87392629378).

The spelling of 53240325143 in words is "fifty-three billion, two hundred forty million, three hundred twenty-five thousand, one hundred forty-three".