86725575 has 72 divisors (see below), whose sum is σ = 162489600. Its totient is φ = 44182080.

The previous prime is 86725553. The next prime is 86725601. The reversal of 86725575 is 57552768.

86725575 is a `hidden beast` number, since 8 + 6 + 72 + 5 + 575 = 666.

It is not a de Polignac number, because 86725575 - 2⁶ = 86725511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86725575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 623856 + ... + 623994.

It is an arithmetic number, because the mean of its divisors is an integer number (2256800).

Almost surely, 2^86725575 is an apocalyptic number.

86725575 is a deficient number, since it is larger than the sum of its proper divisors (75764025).

86725575 is a wasteful number, since it uses less digits than its factorization.

86725575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 253 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 86725575 is about 9312.6567100908. The cubic root of 86725575 is about 442.6383748032.

The spelling of 86725575 in words is "eighty-six million, seven hundred twenty-five thousand, five hundred seventy-five".