855825975 has 72 divisors (see below), whose sum is σ = 1627217280. Its totient is φ = 429042240.

The previous prime is 855825973. The next prime is 855825979. The reversal of 855825975 is 579528558.

It is a happy number.

855825975 is a `hidden beast` number, since 8 + 5 + 582 + 59 + 7 + 5 = 666.

It is not a de Polignac number, because 855825975 - 2¹ = 855825973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855825973) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 303924 + ... + 306726.

It is an arithmetic number, because the mean of its divisors is an integer number (22600240).

Almost surely, 2^855825975 is an apocalyptic number.

855825975 is a deficient number, since it is larger than the sum of its proper divisors (771391305).

855825975 is a wasteful number, since it uses less digits than its factorization.

855825975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901 (or 2893 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 54.

The square root of 855825975 is about 29254.5034994614. The cubic root of 855825975 is about 949.4275313701.

The spelling of 855825975 in words is "eight hundred fifty-five million, eight hundred twenty-five thousand, nine hundred seventy-five".