54260639 has 4 divisors (see below), whose sum is σ = 54276024. Its totient is φ = 54245256.

The previous prime is 54260629. The next prime is 54260693. The reversal of 54260639 is 93606245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 93606245 = 5 ⋅18721249.

It is a cyclic number.

It is not a de Polignac number, because 54260639 - 2¹⁶ = 54195103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54260599 and 54260608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54260629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524 + ... + 10430.

It is an arithmetic number, because the mean of its divisors is an integer number (13569006).

Almost surely, 2^54260639 is an apocalyptic number.

54260639 is a deficient number, since it is larger than the sum of its proper divisors (15385).

54260639 is an equidigital number, since it uses as much as digits as its factorization.

54260639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15384.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 54260639 is about 7366.1821183025. The cubic root of 54260639 is about 378.5834587508.

The spelling of 54260639 in words is "fifty-four million, two hundred sixty thousand, six hundred thirty-nine".