850725530 has 8 divisors (see below), whose sum is σ = 1531305972. Its totient is φ = 340290208.

The previous prime is 850725517. The next prime is 850725539. The reversal of 850725530 is 35527058.

It can be written as a sum of positive squares in 2 ways, for example, as 799588729 + 51136801 = 28277^2 + 7151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (850725539) 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, 42536267 + ... + 42536286.

Almost surely, 2^850725530 is an apocalyptic number.

850725530 is a deficient number, since it is larger than the sum of its proper divisors (680580442).

850725530 is a wasteful number, since it uses less digits than its factorization.

850725530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85072560.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 850725530 is about 29167.1995570367. The cubic root of 850725530 is about 947.5376787833.

The spelling of 850725530 in words is "eight hundred fifty million, seven hundred twenty-five thousand, five hundred thirty".