55551013 has 8 divisors (see below), whose sum is σ = 63820800. Its totient is φ = 47364720.

The previous prime is 55551011. The next prime is 55551017. The reversal of 55551013 is 31015555.

55551013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55551013 - 2¹ = 55551011 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 (55551011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19438 + ... + 22111.

It is an arithmetic number, because the mean of its divisors is an integer number (7977600).

Almost surely, 2^55551013 is an apocalyptic number.

It is an amenable number.

55551013 is a deficient number, since it is larger than the sum of its proper divisors (8269787).

55551013 is a wasteful number, since it uses less digits than its factorization.

55551013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41747.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 55551013 is about 7453.2551948796. The cubic root of 55551013 is about 381.5610140449.

Adding to 55551013 its reverse (31015555), we get a palindrome (86566568).

The spelling of 55551013 in words is "fifty-five million, five hundred fifty-one thousand, thirteen".