2065520 has 20 divisors (see below), whose sum is σ = 4802520. Its totient is φ = 826176.

The previous prime is 2065501. The next prime is 2065523. The reversal of 2065520 is 255602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2065492 and 2065501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12830 + ... + 12989.

It is an arithmetic number, because the mean of its divisors is an integer number (240126).

2^2065520 is an apocalyptic number.

2065520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2065520 is an abundant number, since it is smaller than the sum of its proper divisors (2737000).

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

2065520 is a wasteful number, since it uses less digits than its factorization.

2065520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25832 (or 25826 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2065520 is about 1437.1917060713. The cubic root of 2065520 is about 127.3531822777.

The spelling of 2065520 in words is "two million, sixty-five thousand, five hundred twenty".