857674525 has 12 divisors (see below), whose sum is σ = 1063881684. Its totient is φ = 685904000.

The previous prime is 857674513. The next prime is 857674529. The reversal of 857674525 is 525476758.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 49182169 + 808492356 = 7013^2 + 28434^2 .

It is not a de Polignac number, because 857674525 - 2²³ = 849285917 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 (857674529) 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, 128265 + ... + 134785.

It is an arithmetic number, because the mean of its divisors is an integer number (88656807).

Almost surely, 2^857674525 is an apocalyptic number.

It is an amenable number.

857674525 is a deficient number, since it is larger than the sum of its proper divisors (206207159).

857674525 is a wasteful number, since it uses less digits than its factorization.

857674525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792 (or 11787 counting only the distinct ones).

The product of its digits is 2352000, while the sum is 49.

The square root of 857674525 is about 29286.0807381254. The cubic root of 857674525 is about 950.1106150053.

The spelling of 857674525 in words is "eight hundred fifty-seven million, six hundred seventy-four thousand, five hundred twenty-five".