54378853 has 4 divisors (see below), whose sum is σ = 54433548. Its totient is φ = 54324160.

The previous prime is 54378823. The next prime is 54378871. The reversal of 54378853 is 35887345.

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 6796449 + 47582404 = 2607^2 + 6898^2 .

It is a cyclic number.

It is not a de Polignac number, because 54378853 - 2²¹ = 52281701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54378823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25828 + ... + 27853.

It is an arithmetic number, because the mean of its divisors is an integer number (13608387).

Almost surely, 2^54378853 is an apocalyptic number.

It is an amenable number.

54378853 is a deficient number, since it is larger than the sum of its proper divisors (54695).

54378853 is a wasteful number, since it uses less digits than its factorization.

54378853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54694.

The product of its digits is 403200, while the sum is 43.

The square root of 54378853 is about 7374.2018551163. The cubic root of 54378853 is about 378.8581907625.

The spelling of 54378853 in words is "fifty-four million, three hundred seventy-eight thousand, eight hundred fifty-three".