54125512519 has 16 divisors (see below), whose sum is σ = 60890683392. Its totient is φ = 47736821088.

The previous prime is 54125512501. The next prime is 54125512537. The reversal of 54125512519 is 91521552145.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54125512501) and next prime (54125512537).

It is a cyclic number.

It is not a de Polignac number, because 54125512519 - 2¹¹ = 54125510471 is a prime.

It is a super-2 number, since 2×54125512519² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54125512559) 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 15 ways as a sum of consecutive naturals, for example, 171402 + ... + 370984.

It is an arithmetic number, because the mean of its divisors is an integer number (3805667712).

Almost surely, 2^54125512519 is an apocalyptic number.

54125512519 is a deficient number, since it is larger than the sum of its proper divisors (6765170873).

54125512519 is a wasteful number, since it uses less digits than its factorization.

54125512519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200526.

The product of its digits is 90000, while the sum is 40.

The spelling of 54125512519 in words is "fifty-four billion, one hundred twenty-five million, five hundred twelve thousand, five hundred nineteen".