54125113531 has 4 divisors (see below), whose sum is σ = 54130590064. Its totient is φ = 54119637000.

The previous prime is 54125113507. The next prime is 54125113541. The reversal of 54125113531 is 13531152145.

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 54125113531 - 2³¹ = 51977629883 is a prime.

It is a super-2 number, since 2×54125113531² (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 = 54125113493 and 54125113502.

It is not an unprimeable number, because it can be changed into a prime (54125113541) 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, 2723415 + ... + 2743216.

It is an arithmetic number, because the mean of its divisors is an integer number (13532647516).

Almost surely, 2^54125113531 is an apocalyptic number.

54125113531 is a deficient number, since it is larger than the sum of its proper divisors (5476533).

54125113531 is an equidigital number, since it uses as much as digits as its factorization.

54125113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476532.

The product of its digits is 9000, while the sum is 31.

Adding to 54125113531 its reverse (13531152145), we get a palindrome (67656265676).

The spelling of 54125113531 in words is "fifty-four billion, one hundred twenty-five million, one hundred thirteen thousand, five hundred thirty-one".