855169953 has 8 divisors (see below), whose sum is σ = 1243883616. Its totient is φ = 518284800.

The previous prime is 855169907. The next prime is 855169979. The reversal of 855169953 is 359961558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 855169953 - 2¹⁷ = 855038881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 855169896 and 855169905.

It is not an unprimeable number, because it can be changed into a prime (855169753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12957088 + ... + 12957153.

It is an arithmetic number, because the mean of its divisors is an integer number (155485452).

Almost surely, 2^855169953 is an apocalyptic number.

It is an amenable number.

855169953 is a deficient number, since it is larger than the sum of its proper divisors (388713663).

855169953 is a wasteful number, since it uses less digits than its factorization.

855169953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25914255.

The product of its digits is 1458000, while the sum is 51.

The square root of 855169953 is about 29243.2890250054. The cubic root of 855169953 is about 949.1848790169.

The spelling of 855169953 in words is "eight hundred fifty-five million, one hundred sixty-nine thousand, nine hundred fifty-three".