85038530 has 16 divisors (see below), whose sum is σ = 154475640. Its totient is φ = 33702912.

The previous prime is 85038517. The next prime is 85038533. The reversal of 85038530 is 3583058.

It can be written as a sum of positive squares in 4 ways, for example, as 45738169 + 39300361 = 6763^2 + 6269^2 .

It is not an unprimeable number, because it can be changed into a prime (85038533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37919 + ... + 40098.

Almost surely, 2^85038530 is an apocalyptic number.

85038530 is a deficient number, since it is larger than the sum of its proper divisors (69437110).

85038530 is a wasteful number, since it uses less digits than its factorization.

85038530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78133.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 85038530 is about 9221.6338031826. The cubic root of 85038530 is about 439.7493924143.

The spelling of 85038530 in words is "eighty-five million, thirty-eight thousand, five hundred thirty".