54028705 has 4 divisors (see below), whose sum is σ = 64834452. Its totient is φ = 43222960.

The previous prime is 54028673. The next prime is 54028729. The reversal of 54028705 is 50782045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16378209 + 37650496 = 4047^2 + 6136^2 .

It is not a de Polignac number, because 54028705 - 2⁵ = 54028673 is a prime.

It is a Smith number, since the sum of its digits (31) 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, 5402866 + ... + 5402875.

It is an arithmetic number, because the mean of its divisors is an integer number (16208613).

Almost surely, 2^54028705 is an apocalyptic number.

It is an amenable number.

54028705 is a deficient number, since it is larger than the sum of its proper divisors (10805747).

54028705 is a wasteful number, since it uses less digits than its factorization.

54028705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10805746.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 54028705 is about 7350.4220967234. The cubic root of 54028705 is about 378.0432772413.

The spelling of 54028705 in words is "fifty-four million, twenty-eight thousand, seven hundred five".