4513381555 has 4 divisors (see below), whose sum is σ = 5416057872. Its totient is φ = 3610705240.

The previous prime is 4513381549. The next prime is 4513381559. The reversal of 4513381555 is 5551833154.

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

It is not a de Polignac number, because 4513381555 - 2³ = 4513381547 is a prime.

It is a super-2 number, since 2×4513381555² = 40741226122028436050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4513381559) 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, 451338151 + ... + 451338160.

It is an arithmetic number, because the mean of its divisors is an integer number (1354014468).

Almost surely, 2^4513381555 is an apocalyptic number.

4513381555 is a deficient number, since it is larger than the sum of its proper divisors (902676317).

4513381555 is an equidigital number, since it uses as much as digits as its factorization.

4513381555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902676316.

The product of its digits is 180000, while the sum is 40.

The square root of 4513381555 is about 67181.7055082706. The cubic root of 4513381555 is about 1652.5984835600.

The spelling of 4513381555 in words is "four billion, five hundred thirteen million, three hundred eighty-one thousand, five hundred fifty-five".