855028658553 has 8 divisors (see below), whose sum is σ = 1140285902688. Its totient is φ = 569895260064.

The previous prime is 855028658543. The next prime is 855028658567. The reversal of 855028658553 is 355856820558.

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

It is not a de Polignac number, because 855028658553 - 2²² = 855024464249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855028658503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30945300 + ... + 30972917.

It is an arithmetic number, because the mean of its divisors is an integer number (142535737836).

Almost surely, 2^855028658553 is an apocalyptic number.

It is an amenable number.

855028658553 is a deficient number, since it is larger than the sum of its proper divisors (285257244135).

855028658553 is a wasteful number, since it uses less digits than its factorization.

855028658553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61922823.

The product of its (nonzero) digits is 57600000, while the sum is 60.

The spelling of 855028658553 in words is "eight hundred fifty-five billion, twenty-eight million, six hundred fifty-eight thousand, five hundred fifty-three".