86255540 has 24 divisors (see below), whose sum is σ = 207013632. Its totient is φ = 29573280.

The previous prime is 86255531. The next prime is 86255563. The reversal of 86255540 is 4555268.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 86255540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307916 + ... + 308195.

It is an arithmetic number, because the mean of its divisors is an integer number (8625568).

Almost surely, 2^86255540 is an apocalyptic number.

It is an amenable number.

86255540 is an abundant number, since it is smaller than the sum of its proper divisors (120758092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86255540 is a wasteful number, since it uses less digits than its factorization.

86255540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616127 (or 616125 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 86255540 is about 9287.3860692877. The cubic root of 86255540 is about 441.8372557282.

The spelling of 86255540 in words is "eighty-six million, two hundred fifty-five thousand, five hundred forty".