85947550 has 48 divisors (see below), whose sum is σ = 179676000. Its totient is φ = 30349440.

The previous prime is 85947541. The next prime is 85947553. The reversal of 85947550 is 5574958.

It is a junction number, because it is equal to n+sod(n) for n = 85947497 and 85947506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85947553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12076 + ... + 17824.

It is an arithmetic number, because the mean of its divisors is an integer number (3743250).

Almost surely, 2^85947550 is an apocalyptic number.

85947550 is an abundant number, since it is smaller than the sum of its proper divisors (93728450).

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

85947550 is a wasteful number, since it uses less digits than its factorization.

85947550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797 (or 5792 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 85947550 is about 9270.7901497122. The cubic root of 85947550 is about 441.3107436698.

The spelling of 85947550 in words is "eighty-five million, nine hundred forty-seven thousand, five hundred fifty".