2065651025 has 18 divisors (see below), whose sum is σ = 2703325302. Its totient is φ = 1565539200.

The previous prime is 2065651019. The next prime is 2065651031. The reversal of 2065651025 is 5201565602.

It is an interprime number because it is at equal distance from previous prime (2065651019) and next prime (2065651031).

It can be written as a sum of positive squares in 3 ways, for example, as 130321 + 2065520704 = 361^2 + 45448^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2065651025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2065650982 and 2065651000.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 105416 + ... + 123465.

It is an arithmetic number, because the mean of its divisors is an integer number (150184739).

Almost surely, 2^2065651025 is an apocalyptic number.

2065651025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2065651025 is a deficient number, since it is larger than the sum of its proper divisors (637674277).

2065651025 is a wasteful number, since it uses less digits than its factorization.

2065651025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228929 (or 228905 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 2065651025 is about 45449.4337148440. The cubic root of 2065651025 is about 1273.5587507792.

The spelling of 2065651025 in words is "two billion, sixty-five million, six hundred fifty-one thousand, twenty-five".