54503639 has 4 divisors (see below), whose sum is σ = 54533160. Its totient is φ = 54474120.

The previous prime is 54503587. The next prime is 54503651. The reversal of 54503639 is 93630545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93630545 = 5 ⋅18726109.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54503639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54503599 and 54503608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54503699) 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 3 ways as a sum of consecutive naturals, for example, 11792 + ... + 15749.

It is an arithmetic number, because the mean of its divisors is an integer number (13633290).

Almost surely, 2^54503639 is an apocalyptic number.

54503639 is a deficient number, since it is larger than the sum of its proper divisors (29521).

54503639 is a wasteful number, since it uses less digits than its factorization.

54503639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29520.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 54503639 is about 7382.6579901821. The cubic root of 54503639 is about 379.1477646148.

The spelling of 54503639 in words is "fifty-four million, five hundred three thousand, six hundred thirty-nine".