86198525 has 12 divisors (see below), whose sum is σ = 122155872. Its totient is φ = 59107440.

The previous prime is 86198521. The next prime is 86198579. The reversal of 86198525 is 52589168.

It is not a de Polignac number, because 86198525 - 2² = 86198521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86198521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246107 + ... + 246456.

It is an arithmetic number, because the mean of its divisors is an integer number (10179656).

Almost surely, 2^86198525 is an apocalyptic number.

It is an amenable number.

86198525 is a deficient number, since it is larger than the sum of its proper divisors (35957347).

86198525 is a wasteful number, since it uses less digits than its factorization.

86198525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492580 (or 492575 counting only the distinct ones).

The product of its digits is 172800, while the sum is 44.

The square root of 86198525 is about 9284.3160760500. The cubic root of 86198525 is about 441.7398826448.

The spelling of 86198525 in words is "eighty-six million, one hundred ninety-eight thousand, five hundred twenty-five".