86057551 has 4 divisors (see below), whose sum is σ = 86098752. Its totient is φ = 86016352.

The previous prime is 86057549. The next prime is 86057557. The reversal of 86057551 is 15575068.

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 86057551 - 2¹ = 86057549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86057551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86057557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17290 + ... + 21703.

It is an arithmetic number, because the mean of its divisors is an integer number (21524688).

Almost surely, 2^86057551 is an apocalyptic number.

86057551 is a deficient number, since it is larger than the sum of its proper divisors (41201).

86057551 is a wasteful number, since it uses less digits than its factorization.

86057551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41200.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 86057551 is about 9276.7209185143. The cubic root of 86057551 is about 441.4989356842.

The spelling of 86057551 in words is "eighty-six million, fifty-seven thousand, five hundred fifty-one".