855725193 has 12 divisors (see below), whose sum is σ = 1262347008. Its totient is φ = 558345240.

The previous prime is 855725191. The next prime is 855725219. The reversal of 855725193 is 391527558.

855725193 is a `hidden beast` number, since 8 + 557 + 2 + 5 + 1 + 93 = 666.

It is not a de Polignac number, because 855725193 - 2¹ = 855725191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855725191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1011073 + ... + 1011918.

It is an arithmetic number, because the mean of its divisors is an integer number (105195584).

Almost surely, 2^855725193 is an apocalyptic number.

It is an amenable number.

855725193 is a deficient number, since it is larger than the sum of its proper divisors (406621815).

855725193 is a wasteful number, since it uses less digits than its factorization.

855725193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023044 (or 2023041 counting only the distinct ones).

The product of its digits is 378000, while the sum is 45.

The square root of 855725193 is about 29252.7809447239. The cubic root of 855725193 is about 949.3902617365.

The spelling of 855725193 in words is "eight hundred fifty-five million, seven hundred twenty-five thousand, one hundred ninety-three".