4513855 has 4 divisors (see below), whose sum is σ = 5416632. Its totient is φ = 3611080.

The previous prime is 4513837. The next prime is 4513897. The reversal of 4513855 is 5583154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5583154 = 2 ⋅2791577.

It is not a de Polignac number, because 4513855 - 2¹⁷ = 4382783 is a prime.

It is a super-2 number, since 2×4513855² = 40749773922050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) 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.

4513855 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451381 + ... + 451390.

It is an arithmetic number, because the mean of its divisors is an integer number (1354158).

Almost surely, 2^4513855 is an apocalyptic number.

4513855 is a deficient number, since it is larger than the sum of its proper divisors (902777).

4513855 is an equidigital number, since it uses as much as digits as its factorization.

4513855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902776.

The product of its digits is 12000, while the sum is 31.

The square root of 4513855 is about 2124.5834885925. The cubic root of 4513855 is about 165.2656266335.

The spelling of 4513855 in words is "four million, five hundred thirteen thousand, eight hundred fifty-five".