54143113531 has 16 divisors (see below), whose sum is σ = 59190657120. Its totient is φ = 49226803200.

The previous prime is 54143113517. The next prime is 54143113547. The reversal of 54143113531 is 13531134145.

It is a cyclic number.

It is not a de Polignac number, because 54143113531 - 2¹¹ = 54143111483 is a prime.

It is a super-2 number, since 2×54143113531² (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 = 54143113493 and 54143113502.

It is not an unprimeable number, because it can be changed into a prime (54143113501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146580 + ... + 360238.

It is an arithmetic number, because the mean of its divisors is an integer number (3699416070).

Almost surely, 2^54143113531 is an apocalyptic number.

54143113531 is a deficient number, since it is larger than the sum of its proper divisors (5047543589).

54143113531 is a wasteful number, since it uses less digits than its factorization.

54143113531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213966.

The product of its digits is 10800, while the sum is 31.

Adding to 54143113531 its reverse (13531134145), we get a palindrome (67674247676).

The spelling of 54143113531 in words is "fifty-four billion, one hundred forty-three million, one hundred thirteen thousand, five hundred thirty-one".