85507030 has 64 divisors (see below), whose sum is σ = 186624000. Its totient is φ = 27554688.

The previous prime is 85507013. The next prime is 85507057. The reversal of 85507030 is 3070558.

It is a super-2 number, since 2×85507030² = 14622904358841800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85507030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317736 + ... + 318004.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 2^85507030 is an apocalyptic number.

85507030 is an abundant number, since it is smaller than the sum of its proper divisors (101116970).

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

85507030 is a wasteful number, since it uses less digits than its factorization.

85507030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 85507030 is about 9247.0011355033. The cubic root of 85507030 is about 440.5554795672. Note that the first 3 decimals are identical.

Adding to 85507030 its reverse (3070558), we get a palindrome (88577588).

The spelling of 85507030 in words is "eighty-five million, five hundred seven thousand, thirty".