54228515 has 8 divisors (see below), whose sum is σ = 70990128. Its totient is φ = 39438880.

The previous prime is 54228509. The next prime is 54228533. The reversal of 54228515 is 51582245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54228515 - 2¹⁸ = 53966371 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492932 + ... + 493041.

It is an arithmetic number, because the mean of its divisors is an integer number (8873766).

Almost surely, 2^54228515 is an apocalyptic number.

54228515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54228515 is a deficient number, since it is larger than the sum of its proper divisors (16761613).

54228515 is a wasteful number, since it uses less digits than its factorization.

54228515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985989.

The product of its digits is 16000, while the sum is 32.

The square root of 54228515 is about 7364.0012900596. The cubic root of 54228515 is about 378.5087329086.

The spelling of 54228515 in words is "fifty-four million, two hundred twenty-eight thousand, five hundred fifteen".