85349553 has 16 divisors (see below), whose sum is σ = 116159232. Its totient is φ = 55728000.

The previous prime is 85349533. The next prime is 85349567. The reversal of 85349553 is 35594358.

It is not a de Polignac number, because 85349553 - 2⁵ = 85349521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85349533) 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, 48733 + ... + 50453.

It is an arithmetic number, because the mean of its divisors is an integer number (7259952).

Almost surely, 2^85349553 is an apocalyptic number.

It is an amenable number.

85349553 is a deficient number, since it is larger than the sum of its proper divisors (30809679).

85349553 is a wasteful number, since it uses less digits than its factorization.

85349553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

The product of its digits is 324000, while the sum is 42.

The square root of 85349553 is about 9238.4821805316. The cubic root of 85349553 is about 440.2848585852.

The spelling of 85349553 in words is "eighty-five million, three hundred forty-nine thousand, five hundred fifty-three".