2618822225 has 12 divisors (see below), whose sum is σ = 3286466736. Its totient is φ = 2069814480.

The previous prime is 2618822209. The next prime is 2618822369. The reversal of 2618822225 is 5222288162.

It is not a de Polignac number, because 2618822225 - 2⁴ = 2618822209 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628967 + ... + 633116.

It is an arithmetic number, because the mean of its divisors is an integer number (273872228).

Almost surely, 2^2618822225 is an apocalyptic number.

2618822225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2618822225 is a deficient number, since it is larger than the sum of its proper divisors (667644511).

2618822225 is a wasteful number, since it uses less digits than its factorization.

2618822225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262176 (or 1262171 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 2618822225 is about 51174.4294057100. The cubic root of 2618822225 is about 1378.3790786039.

The spelling of 2618822225 in words is "two billion, six hundred eighteen million, eight hundred twenty-two thousand, two hundred twenty-five".