855395258 has 4 divisors (see below), whose sum is σ = 1283092890. Its totient is φ = 427697628.

The previous prime is 855395243. The next prime is 855395269. The reversal of 855395258 is 852593558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 764135449 + 91259809 = 27643^2 + 9553^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213848813 + ... + 213848816.

Almost surely, 2^855395258 is an apocalyptic number.

855395258 is a deficient number, since it is larger than the sum of its proper divisors (427697632).

855395258 is a wasteful number, since it uses less digits than its factorization.

855395258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427697631.

The product of its digits is 2160000, while the sum is 50.

The square root of 855395258 is about 29247.1410226709. The cubic root of 855395258 is about 949.2682298254.

The spelling of 855395258 in words is "eight hundred fifty-five million, three hundred ninety-five thousand, two hundred fifty-eight".