86055531 has 8 divisors (see below), whose sum is σ = 115061760. Its totient is φ = 57209832.

The previous prime is 86055527. The next prime is 86055533. The reversal of 86055531 is 13555068.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86055531 - 2² = 86055527 is a prime.

It is a super-2 number, since 2×86055531² = 14811108831383922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86055492 and 86055501.

It is not an unprimeable number, because it can be changed into a prime (86055533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38875 + ... + 41028.

It is an arithmetic number, because the mean of its divisors is an integer number (14382720).

Almost surely, 2^86055531 is an apocalyptic number.

86055531 is a deficient number, since it is larger than the sum of its proper divisors (29006229).

86055531 is a wasteful number, since it uses less digits than its factorization.

86055531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80265.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 86055531 is about 9276.6120431977. The cubic root of 86055531 is about 441.4954812717.

The spelling of 86055531 in words is "eighty-six million, fifty-five thousand, five hundred thirty-one".