855565053 has 8 divisors (see below), whose sum is σ = 1303718208. Its totient is φ = 488894304.

The previous prime is 855565031. The next prime is 855565093. The reversal of 855565053 is 350565558.

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

It is not a de Polignac number, because 855565053 - 2⁵ = 855565021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 855564996 and 855565014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855565093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20370576 + ... + 20370617.

It is an arithmetic number, because the mean of its divisors is an integer number (162964776).

Almost surely, 2^855565053 is an apocalyptic number.

It is an amenable number.

855565053 is a deficient number, since it is larger than the sum of its proper divisors (448153155).

855565053 is a wasteful number, since it uses less digits than its factorization.

855565053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40741203.

The product of its (nonzero) digits is 450000, while the sum is 42.

The square root of 855565053 is about 29250.0436409931. The cubic root of 855565053 is about 949.3310352299.

It can be divided in two parts, 85556 and 5053, that added together give a palindrome (90609).

The spelling of 855565053 in words is "eight hundred fifty-five million, five hundred sixty-five thousand, fifty-three".