85535913 has 16 divisors (see below), whose sum is σ = 118525952. Its totient is φ = 54810000.

The previous prime is 85535909. The next prime is 85535927. The reversal of 85535913 is 31953558.

It is a happy number.

It is not a de Polignac number, because 85535913 - 2² = 85535909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85535903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10998 + ... + 17088.

It is an arithmetic number, because the mean of its divisors is an integer number (7407872).

Almost surely, 2^85535913 is an apocalyptic number.

It is an amenable number.

85535913 is a deficient number, since it is larger than the sum of its proper divisors (32990039).

85535913 is a wasteful number, since it uses less digits than its factorization.

85535913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276.

The product of its digits is 81000, while the sum is 39.

The square root of 85535913 is about 9248.5627532066. The cubic root of 85535913 is about 440.6050783408.

The spelling of 85535913 in words is "eighty-five million, five hundred thirty-five thousand, nine hundred thirteen".