85415512 has 32 divisors (see below), whose sum is σ = 197114400. Its totient is φ = 33790464.

The previous prime is 85415503. The next prime is 85415513. The reversal of 85415512 is 21551458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85415513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57937 + ... + 59392.

It is an arithmetic number, because the mean of its divisors is an integer number (6159825).

Almost surely, 2^85415512 is an apocalyptic number.

It is an amenable number.

85415512 is an abundant number, since it is smaller than the sum of its proper divisors (111698888).

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

85415512 is a wasteful number, since it uses less digits than its factorization.

85415512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117355 (or 117351 counting only the distinct ones).

The product of its digits is 8000, while the sum is 31.

The square root of 85415512 is about 9242.0512874578. The cubic root of 85415512 is about 440.3982482483.

The spelling of 85415512 in words is "eighty-five million, four hundred fifteen thousand, five hundred twelve".