855425 has 6 divisors (see below), whose sum is σ = 1060758. Its totient is φ = 684320.

The previous prime is 855419. The next prime is 855427. The reversal of 855425 is 524558.

855425 = T₂₄₉ + T₂₅₀ + ... + T₂₇₃.

It can be written as a sum of positive squares in 3 ways, for example, as 226576 + 628849 = 476^2 + 793^2 .

It is a de Polignac number, because none of the positive numbers 2^k-855425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 855425.

It is not an unprimeable number, because it can be changed into a prime (855427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17084 + ... + 17133.

It is an arithmetic number, because the mean of its divisors is an integer number (176793).

2⁸⁵⁵⁴²⁵ is an apocalyptic number.

It is an amenable number.

855425 is a deficient number, since it is larger than the sum of its proper divisors (205333).

855425 is a wasteful number, since it uses less digits than its factorization.

855425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34227 (or 34222 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 855425 is about 924.8918855737. The cubic root of 855425 is about 94.9279231682.

The spelling of 855425 in words is "eight hundred fifty-five thousand, four hundred twenty-five".