1085765550 has 48 divisors (see below), whose sum is σ = 2695006080. Its totient is φ = 289289440.

The previous prime is 1085765543. The next prime is 1085765587. The reversal of 1085765550 is 555675801.

It is a Curzon number.

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, 231529 + ... + 236171.

It is an arithmetic number, because the mean of its divisors is an integer number (56145960).

Almost surely, 2^1085765550 is an apocalyptic number.

1085765550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1085765550 is an abundant number, since it is smaller than the sum of its proper divisors (1609240530).

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

1085765550 is a wasteful number, since it uses less digits than its factorization.

1085765550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217 (or 6212 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 42.

The square root of 1085765550 is about 32950.9567387656. The cubic root of 1085765550 is about 1027.8080605530.

The spelling of 1085765550 in words is "one billion, eighty-five million, seven hundred sixty-five thousand, five hundred fifty".