2155554413 has 8 divisors (see below), whose sum is σ = 2166687096. Its totient is φ = 2144448000.

The previous prime is 2155554397. The next prime is 2155554431. The reversal of 2155554413 is 3144555512.

It can be written as a sum of positive squares in 4 ways, for example, as 954377449 + 1201176964 = 30893^2 + 34658^2 .

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 2155554413 - 2⁴ = 2155554397 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 (2155554433) 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, 169973 + ... + 182213.

It is an arithmetic number, because the mean of its divisors is an integer number (270835887).

Almost surely, 2^2155554413 is an apocalyptic number.

It is an amenable number.

2155554413 is a deficient number, since it is larger than the sum of its proper divisors (11132683).

2155554413 is a wasteful number, since it uses less digits than its factorization.

2155554413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13135.

The product of its digits is 60000, while the sum is 35.

The square root of 2155554413 is about 46427.9486193392. The cubic root of 2155554413 is about 1291.7733783573.

The spelling of 2155554413 in words is "two billion, one hundred fifty-five million, five hundred fifty-four thousand, four hundred thirteen".