54459215 has 4 divisors (see below), whose sum is σ = 65351064. Its totient is φ = 43567368.

The previous prime is 54459191. The next prime is 54459233. The reversal of 54459215 is 51295445.

It is a happy number.

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 54459215 - 2⁶ = 54459151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5445917 + ... + 5445926.

It is an arithmetic number, because the mean of its divisors is an integer number (16337766).

Almost surely, 2^54459215 is an apocalyptic number.

54459215 is a deficient number, since it is larger than the sum of its proper divisors (10891849).

54459215 is a wasteful number, since it uses less digits than its factorization.

54459215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10891848.

The product of its digits is 36000, while the sum is 35.

The square root of 54459215 is about 7379.6487043761. The cubic root of 54459215 is about 379.0447266110.

The spelling of 54459215 in words is "fifty-four million, four hundred fifty-nine thousand, two hundred fifteen".