86551542 has 108 divisors (see below), whose sum is σ = 240075108. Its totient is φ = 22453200.

The previous prime is 86551541. The next prime is 86551579. The reversal of 86551542 is 24515568.

86551542 is a `hidden beast` number, since 8 + 65 + 51 + 542 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 86551497 and 86551506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86551541) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 106317 + ... + 107127.

Almost surely, 2^86551542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86551542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120037554).

86551542 is an abundant number, since it is smaller than the sum of its proper divisors (153523566).

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

86551542 is a wasteful number, since it uses less digits than its factorization.

86551542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 834 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 86551542 is about 9303.3081213082. The cubic root of 86551542 is about 442.3420943812.

The spelling of 86551542 in words is "eighty-six million, five hundred fifty-one thousand, five hundred forty-two".