855653915 has 8 divisors (see below), whose sum is σ = 1026952080. Its totient is φ = 684411552.

The previous prime is 855653881. The next prime is 855653927. The reversal of 855653915 is 519356558.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 855653915 - 2²² = 851459611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 855653915.

It is an unprimeable number.

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, 36152 + ... + 54938.

It is an arithmetic number, because the mean of its divisors is an integer number (128369010).

Almost surely, 2^855653915 is an apocalyptic number.

855653915 is a deficient number, since it is larger than the sum of its proper divisors (171298165).

855653915 is a wasteful number, since it uses less digits than its factorization.

855653915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27901.

The product of its digits is 810000, while the sum is 47.

The square root of 855653915 is about 29251.5626078334. The cubic root of 855653915 is about 949.3639010471.

The spelling of 855653915 in words is "eight hundred fifty-five million, six hundred fifty-three thousand, nine hundred fifteen".