54205115 has 4 divisors (see below), whose sum is σ = 65046144. Its totient is φ = 43364088.

The previous prime is 54205097. The next prime is 54205117. The reversal of 54205115 is 51150245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51150245 = 5 ⋅10230049.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54205115 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54205117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5420507 + ... + 5420516.

It is an arithmetic number, because the mean of its divisors is an integer number (16261536).

Almost surely, 2^54205115 is an apocalyptic number.

54205115 is a deficient number, since it is larger than the sum of its proper divisors (10841029).

54205115 is a wasteful number, since it uses less digits than its factorization.

54205115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10841028.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 54205115 is about 7362.4123084761. The cubic root of 54205115 is about 378.4542819823.

The spelling of 54205115 in words is "fifty-four million, two hundred five thousand, one hundred fifteen".