2215542445 has 8 divisors (see below), whose sum is σ = 2660376600. Its totient is φ = 1771283520.

The previous prime is 2215542437. The next prime is 2215542451. The reversal of 2215542445 is 5442455122.

2215542445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123943689 + 2091598756 = 11133^2 + 45734^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2215542445 - 2³ = 2215542437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2215542445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135286 + ... + 150775.

It is an arithmetic number, because the mean of its divisors is an integer number (332547075).

Almost surely, 2^2215542445 is an apocalyptic number.

It is an amenable number.

2215542445 is a deficient number, since it is larger than the sum of its proper divisors (444834155).

2215542445 is a wasteful number, since it uses less digits than its factorization.

2215542445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287615.

The product of its digits is 64000, while the sum is 34.

The square root of 2215542445 is about 47069.5490205717. The cubic root of 2215542445 is about 1303.6470459190.

Adding to 2215542445 its reverse (5442455122), we get a palindrome (7657997567).

The spelling of 2215542445 in words is "two billion, two hundred fifteen million, five hundred forty-two thousand, four hundred forty-five".