55505013 has 8 divisors (see below), whose sum is σ = 74052000. Its totient is φ = 36980688.

The previous prime is 55504997. The next prime is 55505029. The reversal of 55505013 is 31050555.

It is an interprime number because it is at equal distance from previous prime (55504997) and next prime (55505029).

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

It is not a de Polignac number, because 55505013 - 2⁴ = 55504997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55507013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263 + ... + 10611.

It is an arithmetic number, because the mean of its divisors is an integer number (9256500).

Almost surely, 2^55505013 is an apocalyptic number.

It is an amenable number.

55505013 is a deficient number, since it is larger than the sum of its proper divisors (18546987).

55505013 is a wasteful number, since it uses less digits than its factorization.

55505013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11331.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 55505013 is about 7450.1686558091. The cubic root of 55505013 is about 381.4556655095.

Adding to 55505013 its reverse (31050555), we get a palindrome (86555568).

The spelling of 55505013 in words is "fifty-five million, five hundred five thousand, thirteen".