54394385 has 4 divisors (see below), whose sum is σ = 65273268. Its totient is φ = 43515504.

The previous prime is 54394357. The next prime is 54394391. The reversal of 54394385 is 58349345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58349345 = 5 ⋅11669869.

It can be written as a sum of positive squares in 2 ways, for example, as 32341969 + 22052416 = 5687^2 + 4696^2 .

It is a cyclic number.

It is not a de Polignac number, because 54394385 - 2⁸ = 54394129 is a prime.

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, 5439434 + ... + 5439443.

It is an arithmetic number, because the mean of its divisors is an integer number (16318317).

Almost surely, 2^54394385 is an apocalyptic number.

It is an amenable number.

54394385 is a deficient number, since it is larger than the sum of its proper divisors (10878883).

54394385 is a wasteful number, since it uses less digits than its factorization.

54394385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10878882.

The product of its digits is 259200, while the sum is 41.

The square root of 54394385 is about 7375.2549108488. The cubic root of 54394385 is about 378.8942578789.

The spelling of 54394385 in words is "fifty-four million, three hundred ninety-four thousand, three hundred eighty-five".