857055588 has 24 divisors (see below), whose sum is σ = 2009851200. Its totient is φ = 284248800.

The previous prime is 857055587. The next prime is 857055613. The reversal of 857055588 is 885550758.

It is a self number, because there is not a number n which added to its sum of digits gives 857055588.

It is not an unprimeable number, because it can be changed into a prime (857055581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177063 + ... + 181838.

It is an arithmetic number, because the mean of its divisors is an integer number (83743800).

Almost surely, 2^857055588 is an apocalyptic number.

It is an amenable number.

857055588 is an abundant number, since it is smaller than the sum of its proper divisors (1152795612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857055588 is a wasteful number, since it uses less digits than its factorization.

857055588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359107 (or 359105 counting only the distinct ones).

The product of its (nonzero) digits is 2240000, while the sum is 51.

The square root of 857055588 is about 29275.5117461676. The cubic root of 857055588 is about 949.8820123090.

The spelling of 857055588 in words is "eight hundred fifty-seven million, fifty-five thousand, five hundred eighty-eight".