1056220325 has 6 divisors (see below), whose sum is σ = 1309713234. Its totient is φ = 844976240.

The previous prime is 1056220303. The next prime is 1056220343. The reversal of 1056220325 is 5230226501.

It can be written as a sum of positive squares in 3 ways, for example, as 4255969 + 1051964356 = 2063^2 + 32434^2 .

It is not a de Polignac number, because 1056220325 - 2⁶ = 1056220261 is a prime.

It is a super-2 number, since 2×1056220325² = 2231202749886211250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1056220294 and 1056220303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21124382 + ... + 21124431.

It is an arithmetic number, because the mean of its divisors is an integer number (218285539).

Almost surely, 2^1056220325 is an apocalyptic number.

It is an amenable number.

1056220325 is a deficient number, since it is larger than the sum of its proper divisors (253492909).

1056220325 is an equidigital number, since it uses as much as digits as its factorization.

1056220325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42248823 (or 42248818 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1056220325 is about 32499.5434583318. The cubic root of 1056220325 is about 1018.3994907447.

Adding to 1056220325 its reverse (5230226501), we get a palindrome (6286446826).

The spelling of 1056220325 in words is "one billion, fifty-six million, two hundred twenty thousand, three hundred twenty-five".