2065500 has 144 divisors (see below), whose sum is σ = 7154784. Its totient is φ = 518400.

The previous prime is 2065493. The next prime is 2065501. The reversal of 2065500 is 55602.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121492 + ... + 121508.

It is an arithmetic number, because the mean of its divisors is an integer number (49686).

2^2065500 is an apocalyptic number.

2065500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3577392).

2065500 is an abundant number, since it is smaller than the sum of its proper divisors (5089284).

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

2065500 is a wasteful number, since it uses less digits than its factorization.

2065500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2065500 is about 1437.1847480404. The cubic root of 2065500 is about 127.3527712316.

The spelling of 2065500 in words is "two million, sixty-five thousand, five hundred".