54386915 has 16 divisors (see below), whose sum is σ = 72264960. Its totient is φ = 38961120.

The previous prime is 54386909. The next prime is 54386963. The reversal of 54386915 is 51968345.

It is not a de Polignac number, because 54386915 - 2¹² = 54382819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3695 + ... + 11064.

It is an arithmetic number, because the mean of its divisors is an integer number (4516560).

Almost surely, 2^54386915 is an apocalyptic number.

54386915 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54386915 is a deficient number, since it is larger than the sum of its proper divisors (17878045).

54386915 is a wasteful number, since it uses less digits than its factorization.

54386915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14842.

The product of its digits is 129600, while the sum is 41.

The square root of 54386915 is about 7374.7484702870. The cubic root of 54386915 is about 378.8769125243.

The spelling of 54386915 in words is "fifty-four million, three hundred eighty-six thousand, nine hundred fifteen".