2055555013 has 4 divisors (see below), whose sum is σ = 2055912300. Its totient is φ = 2055197728.

The previous prime is 2055555001. The next prime is 2055555041. The reversal of 2055555013 is 3105555502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 917302369 + 1138252644 = 30287^2 + 33738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055555013 - 2²⁵ = 2022000581 is a prime.

It is a super-2 number, since 2×2055555013² = 8450612822938860338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055555083) 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, 169870 + ... + 181567.

It is an arithmetic number, because the mean of its divisors is an integer number (513978075).

Almost surely, 2^2055555013 is an apocalyptic number.

It is an amenable number.

2055555013 is a deficient number, since it is larger than the sum of its proper divisors (357287).

2055555013 is an equidigital number, since it uses as much as digits as its factorization.

2055555013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357286.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 2055555013 is about 45338.2290456961. The cubic root of 2055555013 is about 1271.4804924415.

The spelling of 2055555013 in words is "two billion, fifty-five million, five hundred fifty-five thousand, thirteen".