2215445425 has 6 divisors (see below), whose sum is σ = 2747152358. Its totient is φ = 1772356320.

The previous prime is 2215445381. The next prime is 2215445431. The reversal of 2215445425 is 5245445122.

It can be written as a sum of positive squares in 3 ways, for example, as 625350049 + 1590095376 = 25007^2 + 39876^2 .

It is not a de Polignac number, because 2215445425 - 2²¹ = 2213348273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44308884 + ... + 44308933.

Almost surely, 2^2215445425 is an apocalyptic number.

2215445425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2215445425 is a deficient number, since it is larger than the sum of its proper divisors (531706933).

2215445425 is an equidigital number, since it uses as much as digits as its factorization.

2215445425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88617827 (or 88617822 counting only the distinct ones).

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

The square root of 2215445425 is about 47068.5184066803. The cubic root of 2215445425 is about 1303.6280164660.

The spelling of 2215445425 in words is "two billion, two hundred fifteen million, four hundred forty-five thousand, four hundred twenty-five".