2252291618 has 4 divisors (see below), whose sum is σ = 3378437430. Its totient is φ = 1126145808.

The previous prime is 2252291611. The next prime is 2252291621. The reversal of 2252291618 is 8161922522.

2252291618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2067793729 + 184497889 = 45473^2 + 13583^2 .

It is not an unprimeable number, because it can be changed into a prime (2252291611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563072903 + ... + 563072906.

Almost surely, 2^2252291618 is an apocalyptic number.

2252291618 is a deficient number, since it is larger than the sum of its proper divisors (1126145812).

2252291618 is a wasteful number, since it uses less digits than its factorization.

2252291618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126145811.

The product of its digits is 34560, while the sum is 38.

The square root of 2252291618 is about 47458.3145297007. The cubic root of 2252291618 is about 1310.8154156499.

The spelling of 2252291618 in words is "two billion, two hundred fifty-two million, two hundred ninety-one thousand, six hundred eighteen".