859369225 has 81 divisors (see below), whose sum is σ = 1300019007. Its totient is φ = 562848000.

The previous prime is 859369223. The next prime is 859369229. The reversal of 859369225 is 522963958.

It is a happy number.

The square root of 859369225 is 29315.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 778800649 + 80568576 = 27907^2 + 8976^2 .

It is not a de Polignac number, because 859369225 - 2¹ = 859369223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859369223) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 20960205 + ... + 20960245.

Almost surely, 2^859369225 is an apocalyptic number.

859369225 is the 29315-th square number.

859369225 is the 14658-th centered octagonal number.

It is an amenable number.

859369225 is a deficient number, since it is larger than the sum of its proper divisors (440649782).

859369225 is a wasteful number, since it uses less digits than its factorization.

859369225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 70 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The cubic root of 859369225 is about 950.7359855322.

Multiplying 859369225 by its sum of digits (49), we get a square (42109092025 = 205205²).

The spelling of 859369225 in words is "eight hundred fifty-nine million, three hundred sixty-nine thousand, two hundred twenty-five".