850225969 has 4 divisors (see below), whose sum is σ = 850469620. Its totient is φ = 849982320.

The previous prime is 850225949. The next prime is 850226023. The reversal of 850225969 is 969522058.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969522058 = 2 ⋅484761029.

It can be written as a sum of positive squares in 2 ways, for example, as 696168225 + 154057744 = 26385^2 + 12412^2 .

It is a cyclic number.

It is not a de Polignac number, because 850225969 - 2¹¹ = 850223921 is a prime.

It is a super-2 number, since 2×850225969² = 1445768396723977922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850225939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116514 + ... + 123595.

It is an arithmetic number, because the mean of its divisors is an integer number (212617405).

Almost surely, 2^850225969 is an apocalyptic number.

It is an amenable number.

850225969 is a deficient number, since it is larger than the sum of its proper divisors (243651).

850225969 is a wasteful number, since it uses less digits than its factorization.

850225969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243650.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 850225969 is about 29158.6345530788. The cubic root of 850225969 is about 947.3521722019.

The spelling of 850225969 in words is "eight hundred fifty million, two hundred twenty-five thousand, nine hundred sixty-nine".