86078550 has 48 divisors (see below), whose sum is σ = 224717760. Its totient is φ = 21745440.

The previous prime is 86078533. The next prime is 86078567. The reversal of 86078550 is 5587068.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86078533) and next prime (86078567).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86078499 and 86078508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12252 + ... + 17951.

It is an arithmetic number, because the mean of its divisors is an integer number (4681620).

Almost surely, 2^86078550 is an apocalyptic number.

86078550 is an abundant number, since it is smaller than the sum of its proper divisors (138639210).

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

86078550 is a wasteful number, since it uses less digits than its factorization.

86078550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30237 (or 30232 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 86078550 is about 9277.8526610418. The cubic root of 86078550 is about 441.5348429814.

The spelling of 86078550 in words is "eighty-six million, seventy-eight thousand, five hundred fifty".