54208397 has 4 divisors (see below), whose sum is σ = 54299196. Its totient is φ = 54117600.

The previous prime is 54208373. The next prime is 54208403. The reversal of 54208397 is 79380245.

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 38613796 + 15594601 = 6214^2 + 3949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54208397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54208397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54208097) 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, 44498 + ... + 45699.

It is an arithmetic number, because the mean of its divisors is an integer number (13574799).

Almost surely, 2^54208397 is an apocalyptic number.

It is an amenable number.

54208397 is a deficient number, since it is larger than the sum of its proper divisors (90799).

54208397 is an equidigital number, since it uses as much as digits as its factorization.

54208397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90798.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 54208397 is about 7362.6351940049. The cubic root of 54208397 is about 378.4619200184.

The spelling of 54208397 in words is "fifty-four million, two hundred eight thousand, three hundred ninety-seven".