2552225618 has 4 divisors (see below), whose sum is σ = 3828338430. Its totient is φ = 1276112808.

The previous prime is 2552225617. The next prime is 2552225671. The reversal of 2552225618 is 8165222552.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2521345369 + 30880249 = 50213^2 + 5557^2 .

It is not an unprimeable number, because it can be changed into a prime (2552225617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638056403 + ... + 638056406.

Almost surely, 2^2552225618 is an apocalyptic number.

2552225618 is a deficient number, since it is larger than the sum of its proper divisors (1276112812).

2552225618 is a wasteful number, since it uses less digits than its factorization.

2552225618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276112811.

The product of its digits is 96000, while the sum is 38.

The square root of 2552225618 is about 50519.5567874462. The cubic root of 2552225618 is about 1366.5945608464.

The spelling of 2552225618 in words is "two billion, five hundred fifty-two million, two hundred twenty-five thousand, six hundred eighteen".