86615250 has 64 divisors (see below), whose sum is σ = 220371840. Its totient is φ = 22651200.

The previous prime is 86615239. The next prime is 86615251. The reversal of 86615250 is 5251668.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86615251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38661 + ... + 40839.

It is an arithmetic number, because the mean of its divisors is an integer number (3443310).

Almost surely, 2^86615250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86615250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110185920).

86615250 is an abundant number, since it is smaller than the sum of its proper divisors (133756590).

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

86615250 is a wasteful number, since it uses less digits than its factorization.

86615250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2242 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 86615250 is about 9306.7314348272. The cubic root of 86615250 is about 442.4505993560.

The spelling of 86615250 in words is "eighty-six million, six hundred fifteen thousand, two hundred fifty".