3899225555 has 4 divisors (see below), whose sum is σ = 4679070672. Its totient is φ = 3119380440.

The previous prime is 3899225507. The next prime is 3899225567. The reversal of 3899225555 is 5555229983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5555229983 = 8803 ⋅631061.

It is not a de Polignac number, because 3899225555 - 2⁸ = 3899225299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3899225497 and 3899225506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389922551 + ... + 389922560.

It is an arithmetic number, because the mean of its divisors is an integer number (1169767668).

Almost surely, 2^3899225555 is an apocalyptic number.

3899225555 is a deficient number, since it is larger than the sum of its proper divisors (779845117).

3899225555 is an equidigital number, since it uses as much as digits as its factorization.

3899225555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779845116.

The product of its digits is 4860000, while the sum is 53.

The square root of 3899225555 is about 62443.7791537316. The cubic root of 3899225555 is about 1573.9567196823.

The spelling of 3899225555 in words is "three billion, eight hundred ninety-nine million, two hundred twenty-five thousand, five hundred fifty-five".