855275557 has 8 divisors (see below), whose sum is σ = 900763200. Its totient is φ = 809835264.

The previous prime is 855275543. The next prime is 855275563. The reversal of 855275557 is 755572558.

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 855275557 - 2⁷ = 855275429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855275557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855275527) 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, 28869 + ... + 50437.

It is an arithmetic number, because the mean of its divisors is an integer number (112595400).

Almost surely, 2^855275557 is an apocalyptic number.

It is an amenable number.

855275557 is a deficient number, since it is larger than the sum of its proper divisors (45487643).

855275557 is a wasteful number, since it uses less digits than its factorization.

855275557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23675.

The product of its digits is 2450000, while the sum is 49.

The square root of 855275557 is about 29245.0945801172. The cubic root of 855275557 is about 949.2239486754.

The spelling of 855275557 in words is "eight hundred fifty-five million, two hundred seventy-five thousand, five hundred fifty-seven".