85006261 has 4 divisors (see below), whose sum is σ = 85034272. Its totient is φ = 84978252.

The previous prime is 85006253. The next prime is 85006267. The reversal of 85006261 is 16260058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85006261 - 2³ = 85006253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85006267) 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 3 ways as a sum of consecutive naturals, for example, 8811 + ... + 15736.

It is an arithmetic number, because the mean of its divisors is an integer number (21258568).

Almost surely, 2^85006261 is an apocalyptic number.

It is an amenable number.

85006261 is a deficient number, since it is larger than the sum of its proper divisors (28011).

85006261 is a wasteful number, since it uses less digits than its factorization.

85006261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28010.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 85006261 is about 9219.8840014395. The cubic root of 85006261 is about 439.6937624608.

The spelling of 85006261 in words is "eighty-five million, six thousand, two hundred sixty-one".