54299878505 has 4 divisors (see below), whose sum is σ = 65159854212. Its totient is φ = 43439902800.

The previous prime is 54299878351. The next prime is 54299878511. The reversal of 54299878505 is 50587899245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5725040896 + 48574837609 = 75664^2 + 220397^2 .

It is not a de Polignac number, because 54299878505 - 2²⁸ = 54031443049 is a prime.

It is a super-2 number, since 2×54299878505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5429987846 + ... + 5429987855.

It is an arithmetic number, because the mean of its divisors is an integer number (16289963553).

Almost surely, 2^54299878505 is an apocalyptic number.

It is an amenable number.

54299878505 is a deficient number, since it is larger than the sum of its proper divisors (10859975707).

54299878505 is a wasteful number, since it uses less digits than its factorization.

54299878505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10859975706.

The product of its (nonzero) digits is 36288000, while the sum is 62.

The spelling of 54299878505 in words is "fifty-four billion, two hundred ninety-nine million, eight hundred seventy-eight thousand, five hundred five".