54864865 has 16 divisors (see below), whose sum is σ = 76049280. Its totient is φ = 37553920.

The previous prime is 54864857. The next prime is 54864869. The reversal of 54864865 is 56846845.

54864865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54864865 - 2³ = 54864857 is a prime.

It is a super-2 number, since 2×54864865² = 6020306822936450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54864869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28405 + ... + 30274.

It is an arithmetic number, because the mean of its divisors is an integer number (4753080).

Almost surely, 2^54864865 is an apocalyptic number.

54864865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54864865 is a deficient number, since it is larger than the sum of its proper divisors (21184415).

54864865 is a wasteful number, since it uses less digits than its factorization.

54864865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58712.

The product of its digits is 921600, while the sum is 46.

The square root of 54864865 is about 7407.0820840598. The cubic root of 54864865 is about 379.9835288336.

The spelling of 54864865 in words is "fifty-four million, eight hundred sixty-four thousand, eight hundred sixty-five".