53144203531 has 4 divisors (see below), whose sum is σ = 53145225072. Its totient is φ = 53143181992.

The previous prime is 53144203507. The next prime is 53144203549. The reversal of 53144203531 is 13530244135.

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 53144203531 - 2⁵ = 53144203499 is a prime.

It is a super-2 number, since 2×53144203531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53144203493 and 53144203502.

It is not an unprimeable number, because it can be changed into a prime (53144203561) 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, 428296 + ... + 538261.

It is an arithmetic number, because the mean of its divisors is an integer number (13286306268).

Almost surely, 2^53144203531 is an apocalyptic number.

53144203531 is a deficient number, since it is larger than the sum of its proper divisors (1021541).

53144203531 is an equidigital number, since it uses as much as digits as its factorization.

53144203531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021540.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 53144203531 its reverse (13530244135), we get a palindrome (66674447666).

The spelling of 53144203531 in words is "fifty-three billion, one hundred forty-four million, two hundred three thousand, five hundred thirty-one".