850070025 has 48 divisors (see below), whose sum is σ = 1784707200. Its totient is φ = 388601280.

The previous prime is 850070009. The next prime is 850070029. The reversal of 850070025 is 520070058.

It is a happy number.

It is not a de Polignac number, because 850070025 - 2⁴ = 850070009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (850070029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85230 + ... + 94679.

It is an arithmetic number, because the mean of its divisors is an integer number (37181400).

Almost surely, 2^850070025 is an apocalyptic number.

It is an amenable number.

850070025 is an abundant number, since it is smaller than the sum of its proper divisors (934637175).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

850070025 is a wasteful number, since it uses less digits than its factorization.

850070025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179935 (or 179924 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 850070025 is about 29155.9603683364. The cubic root of 850070025 is about 947.2942492004.

The spelling of 850070025 in words is "eight hundred fifty million, seventy thousand, twenty-five".