85067520 has 72 divisors (see below), whose sum is σ = 271696656. Its totient is φ = 22683648.

The previous prime is 85067513. The next prime is 85067537. The reversal of 85067520 is 2576058.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7237 + ... + 14916.

Almost surely, 2^85067520 is an apocalyptic number.

85067520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85067520 is an abundant number, since it is smaller than the sum of its proper divisors (186629136).

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

85067520 is a wasteful number, since it uses less digits than its factorization.

85067520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22177 (or 22163 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 85067520 is about 9223.2055165219. The cubic root of 85067520 is about 439.7993575557.

The spelling of 85067520 in words is "eighty-five million, sixty-seven thousand, five hundred twenty".