855265025 has 12 divisors (see below), whose sum is σ = 1066029612. Its totient is φ = 680663040.

The previous prime is 855265009. The next prime is 855265067. The reversal of 855265025 is 520562558.

It is a happy number.

855265025 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 6 ways, for example, as 9560464 + 845704561 = 3092^2 + 29081^2 .

It is not a de Polignac number, because 855265025 - 2⁴ = 855265009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 855265025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83804 + ... + 93453.

It is an arithmetic number, because the mean of its divisors is an integer number (88835801).

Almost surely, 2^855265025 is an apocalyptic number.

It is an amenable number.

855265025 is a deficient number, since it is larger than the sum of its proper divisors (210764587).

855265025 is a wasteful number, since it uses less digits than its factorization.

855265025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177460 (or 177455 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The square root of 855265025 is about 29244.9145151768. The cubic root of 855265025 is about 949.2200523609.

The spelling of 855265025 in words is "eight hundred fifty-five million, two hundred sixty-five thousand, twenty-five".