857551052 has 12 divisors (see below), whose sum is σ = 1509099480. Its totient is φ = 426379776.

The previous prime is 857551033. The next prime is 857551061. The reversal of 857551052 is 250155758.

It is a junction number, because it is equal to n+sod(n) for n = 857550997 and 857551015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598133 + ... + 599564.

It is an arithmetic number, because the mean of its divisors is an integer number (125758290).

Almost surely, 2^857551052 is an apocalyptic number.

It is an amenable number.

857551052 is a deficient number, since it is larger than the sum of its proper divisors (651548428).

857551052 is a wasteful number, since it uses less digits than its factorization.

857551052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197880 (or 1197878 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 38.

The square root of 857551052 is about 29283.9726130182. The cubic root of 857551052 is about 950.0650193726.

The spelling of 857551052 in words is "eight hundred fifty-seven million, five hundred fifty-one thousand, fifty-two".