54550013 has 4 divisors (see below), whose sum is σ = 62342880. Its totient is φ = 46757148.

The previous prime is 54550009. The next prime is 54550019. The reversal of 54550013 is 31005545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31005545 = 5 ⋅6201109.

It is a cyclic number.

It is not a de Polignac number, because 54550013 - 2² = 54550009 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 (54550019) 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, 3896423 + ... + 3896436.

It is an arithmetic number, because the mean of its divisors is an integer number (15585720).

Almost surely, 2^54550013 is an apocalyptic number.

It is an amenable number.

54550013 is a deficient number, since it is larger than the sum of its proper divisors (7792867).

54550013 is an equidigital number, since it uses as much as digits as its factorization.

54550013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7792866.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 54550013 is about 7385.7980611441. The cubic root of 54550013 is about 379.2552657801.

Adding to 54550013 its reverse (31005545), we get a palindrome (85555558).

The spelling of 54550013 in words is "fifty-four million, five hundred fifty thousand, thirteen".