1056212825 has 6 divisors (see below), whose sum is σ = 1309703934. Its totient is φ = 844970240.

The previous prime is 1056212803. The next prime is 1056212851. The reversal of 1056212825 is 5282126501.

It can be written as a sum of positive squares in 3 ways, for example, as 120648256 + 935564569 = 10984^2 + 30587^2 .

It is not a de Polignac number, because 1056212825 - 2⁶ = 1056212761 is a prime.

It is a super-2 number, since 2×1056212825² = 2231171063388961250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1056212791 and 1056212800.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21124232 + ... + 21124281.

It is an arithmetic number, because the mean of its divisors is an integer number (218283989).

Almost surely, 2^1056212825 is an apocalyptic number.

It is an amenable number.

1056212825 is a deficient number, since it is larger than the sum of its proper divisors (253491109).

1056212825 is an equidigital number, since it uses as much as digits as its factorization.

1056212825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42248523 (or 42248518 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1056212825 is about 32499.4280718907. The cubic root of 1056212825 is about 1018.3970802583.

The spelling of 1056212825 in words is "one billion, fifty-six million, two hundred twelve thousand, eight hundred twenty-five".