85513641 has 8 divisors (see below), whose sum is σ = 115720224. Its totient is φ = 56158080.

The previous prime is 85513613. The next prime is 85513657. The reversal of 85513641 is 14631558.

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

It is not a de Polignac number, because 85513641 - 2⁷ = 85513513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85513601) 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, 212520 + ... + 212921.

It is an arithmetic number, because the mean of its divisors is an integer number (14465028).

Almost surely, 2^85513641 is an apocalyptic number.

It is an amenable number.

85513641 is a deficient number, since it is larger than the sum of its proper divisors (30206583).

85513641 is a wasteful number, since it uses less digits than its factorization.

85513641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425511.

The product of its digits is 14400, while the sum is 33.

The square root of 85513641 is about 9247.3585958370. The cubic root of 85513641 is about 440.5668331648.

The spelling of 85513641 in words is "eighty-five million, five hundred thirteen thousand, six hundred forty-one".