54663605 has 4 divisors (see below), whose sum is σ = 65596332. Its totient is φ = 43730880.

The previous prime is 54663601. The next prime is 54663611. The reversal of 54663605 is 50636645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50636645 = 5 ⋅10127329.

It can be written as a sum of positive squares in 2 ways, for example, as 26030404 + 28633201 = 5102^2 + 5351^2 .

It is not a de Polignac number, because 54663605 - 2² = 54663601 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 (54663601) 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, 5466356 + ... + 5466365.

It is an arithmetic number, because the mean of its divisors is an integer number (16399083).

Almost surely, 2^54663605 is an apocalyptic number.

It is an amenable number.

54663605 is a deficient number, since it is larger than the sum of its proper divisors (10932727).

54663605 is a wasteful number, since it uses less digits than its factorization.

54663605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10932726.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 54663605 is about 7393.4839554840. The cubic root of 54663605 is about 379.5183301595.

The spelling of 54663605 in words is "fifty-four million, six hundred sixty-three thousand, six hundred five".