855770525 has 12 divisors (see below), whose sum is σ = 1078553364. Its totient is φ = 673392000.

The previous prime is 855770519. The next prime is 855770527. The reversal of 855770525 is 525077558.

It can be written as a sum of positive squares in 6 ways, for example, as 448295929 + 407474596 = 21173^2 + 20186^2 .

It is not a de Polignac number, because 855770525 - 2¹⁰ = 855769501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855770527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279056 + ... + 282105.

It is an arithmetic number, because the mean of its divisors is an integer number (89879447).

Almost surely, 2^855770525 is an apocalyptic number.

It is an amenable number.

855770525 is a deficient number, since it is larger than the sum of its proper divisors (222782839).

855770525 is a wasteful number, since it uses less digits than its factorization.

855770525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561232 (or 561227 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 44.

The square root of 855770525 is about 29253.5557667782. Note that the first 3 decimals coincide. The cubic root of 855770525 is about 949.4070260746.

The spelling of 855770525 in words is "eight hundred fifty-five million, seven hundred seventy thousand, five hundred twenty-five".