86495551 has 4 divisors (see below), whose sum is σ = 86623992. Its totient is φ = 86367112.

The previous prime is 86495531. The next prime is 86495567. The reversal of 86495551 is 15559468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86495551 - 2⁹ = 86495039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86495498 and 86495507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86495531) 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, 63205 + ... + 64558.

It is an arithmetic number, because the mean of its divisors is an integer number (21655998).

Almost surely, 2^86495551 is an apocalyptic number.

86495551 is a deficient number, since it is larger than the sum of its proper divisors (128441).

86495551 is a wasteful number, since it uses less digits than its factorization.

86495551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128440.

The product of its digits is 216000, while the sum is 43.

The square root of 86495551 is about 9300.2984360718. The cubic root of 86495551 is about 442.2466887295.

The spelling of 86495551 in words is "eighty-six million, four hundred ninety-five thousand, five hundred fifty-one".