54215100305 has 4 divisors (see below), whose sum is σ = 65058120372. Its totient is φ = 43372080240.

The previous prime is 54215100229. The next prime is 54215100389. The reversal of 54215100305 is 50300151245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50300151245 = 5 ⋅10060030249.

It can be written as a sum of positive squares in 2 ways, for example, as 30527427841 + 23687672464 = 174721^2 + 153908^2 .

It is not a de Polignac number, because 54215100305 - 2¹⁴ = 54215083921 is a prime.

It is a super-2 number, since 2×54215100305² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon 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, 5421510026 + ... + 5421510035.

It is an arithmetic number, because the mean of its divisors is an integer number (16264530093).

Almost surely, 2^54215100305 is an apocalyptic number.

It is an amenable number.

54215100305 is a deficient number, since it is larger than the sum of its proper divisors (10843020067).

54215100305 is a wasteful number, since it uses less digits than its factorization.

54215100305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10843020066.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 54215100305 in words is "fifty-four billion, two hundred fifteen million, one hundred thousand, three hundred five".