855110553 has 16 divisors (see below), whose sum is σ = 1252152000. Its totient is φ = 514767680.

The previous prime is 855110467. The next prime is 855110567. The reversal of 855110553 is 355011558.

It is a cyclic number.

It is not a de Polignac number, because 855110553 - 2⁹ = 855110041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (855110653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82038 + ... + 91871.

It is an arithmetic number, because the mean of its divisors is an integer number (78259500).

Almost surely, 2^855110553 is an apocalyptic number.

It is an amenable number.

855110553 is a deficient number, since it is larger than the sum of its proper divisors (397041447).

855110553 is a wasteful number, since it uses less digits than its factorization.

855110553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174072.

The product of its (nonzero) digits is 15000, while the sum is 33.

The square root of 855110553 is about 29242.2733897349. The cubic root of 855110553 is about 949.1629017530.

The spelling of 855110553 in words is "eight hundred fifty-five million, one hundred ten thousand, five hundred fifty-three".