855265545 has 24 divisors (see below), whose sum is σ = 1522529736. Its totient is φ = 443812608.

The previous prime is 855265531. The next prime is 855265573. The reversal of 855265545 is 545562558.

855265545 is a `hidden beast` number, since 8 + 552 + 6 + 55 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 126427536 + 728838009 = 11244^2 + 26997^2 .

It is not a de Polignac number, because 855265545 - 2¹⁰ = 855264521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 855265545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255172 + ... + 258501.

It is an arithmetic number, because the mean of its divisors is an integer number (63438739).

Almost surely, 2^855265545 is an apocalyptic number.

It is an amenable number.

855265545 is a deficient number, since it is larger than the sum of its proper divisors (667264191).

855265545 is a wasteful number, since it uses less digits than its factorization.

855265545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513721 (or 513718 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The square root of 855265545 is about 29244.9234056101. The cubic root of 855265545 is about 949.2202447357.

The spelling of 855265545 in words is "eight hundred fifty-five million, two hundred sixty-five thousand, five hundred forty-five".