54249397 has 8 divisors (see below), whose sum is σ = 57862296. Its totient is φ = 50683392.

The previous prime is 54249367. The next prime is 54249443. The reversal of 54249397 is 79394245.

It can be written as a sum of positive squares in 4 ways, for example, as 4137156 + 50112241 = 2034^2 + 7079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-54249397 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 (54249347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9318 + ... + 13975.

It is an arithmetic number, because the mean of its divisors is an integer number (7232787).

Almost surely, 2^54249397 is an apocalyptic number.

It is an amenable number.

54249397 is a deficient number, since it is larger than the sum of its proper divisors (3612899).

54249397 is a wasteful number, since it uses less digits than its factorization.

54249397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23447.

The product of its digits is 272160, while the sum is 43.

The square root of 54249397 is about 7365.4189969071. The cubic root of 54249397 is about 378.5573113181.

The spelling of 54249397 in words is "fifty-four million, two hundred forty-nine thousand, three hundred ninety-seven".