86506253 has 4 divisors (see below), whose sum is σ = 86616960. Its totient is φ = 86395548.

The previous prime is 86506237. The next prime is 86506283. The reversal of 86506253 is 35260568.

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 86506253 - 2⁴ = 86506237 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 (86506283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54173 + ... + 55746.

It is an arithmetic number, because the mean of its divisors is an integer number (21654240).

Almost surely, 2^86506253 is an apocalyptic number.

It is an amenable number.

86506253 is a deficient number, since it is larger than the sum of its proper divisors (110707).

86506253 is a wasteful number, since it uses less digits than its factorization.

86506253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110706.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 86506253 is about 9300.8737761567. The cubic root of 86506253 is about 442.2649275437.

The spelling of 86506253 in words is "eighty-six million, five hundred six thousand, two hundred fifty-three".