86425520 has 40 divisors (see below), whose sum is σ = 207427200. Its totient is φ = 33454080.

The previous prime is 86425519. The next prime is 86425523. The reversal of 86425520 is 2552468.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (86425523) 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, 14945 + ... + 19904.

It is an arithmetic number, because the mean of its divisors is an integer number (5185680).

Almost surely, 2^86425520 is an apocalyptic number.

86425520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86425520 is an abundant number, since it is smaller than the sum of its proper divisors (121001680).

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

86425520 is a wasteful number, since it uses less digits than its factorization.

86425520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34893 (or 34887 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 86425520 is about 9296.5326869753. The cubic root of 86425520 is about 442.1273017020.

Adding to 86425520 its reverse (2552468), we get a palindrome (88977988).

The spelling of 86425520 in words is "eighty-six million, four hundred twenty-five thousand, five hundred twenty".