54453865 has 4 divisors (see below), whose sum is σ = 65344644. Its totient is φ = 43563088.

The previous prime is 54453859. The next prime is 54453901. The reversal of 54453865 is 56835445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56835445 = 5 ⋅11367089.

It can be written as a sum of positive squares in 2 ways, for example, as 6456681 + 47997184 = 2541^2 + 6928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54453865 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5445382 + ... + 5445391.

It is an arithmetic number, because the mean of its divisors is an integer number (16336161).

Almost surely, 2^54453865 is an apocalyptic number.

It is an amenable number.

54453865 is a deficient number, since it is larger than the sum of its proper divisors (10890779).

54453865 is a wasteful number, since it uses less digits than its factorization.

54453865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890778.

The product of its digits is 288000, while the sum is 40.

The square root of 54453865 is about 7379.2862120940. The cubic root of 54453865 is about 379.0323139232.

The spelling of 54453865 in words is "fifty-four million, four hundred fifty-three thousand, eight hundred sixty-five".