2001835025 has 6 divisors (see below), whose sum is σ = 2482275462. Its totient is φ = 1601468000.

The previous prime is 2001835021. The next prime is 2001835027. The reversal of 2001835025 is 5205381002.

It can be written as a sum of positive squares in 3 ways, for example, as 230098561 + 1771736464 = 15169^2 + 42092^2 .

It is not a de Polignac number, because 2001835025 - 2² = 2001835021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001834985 and 2001835003.

It is not an unprimeable number, because it can be changed into a prime (2001835021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40036676 + ... + 40036725.

It is an arithmetic number, because the mean of its divisors is an integer number (413712577).

Almost surely, 2^2001835025 is an apocalyptic number.

2001835025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001835025 is a deficient number, since it is larger than the sum of its proper divisors (480440437).

2001835025 is an equidigital number, since it uses as much as digits as its factorization.

2001835025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80073411 (or 80073406 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2001835025 is about 44741.8710493873. The cubic root of 2001835025 is about 1260.3062632103.

The spelling of 2001835025 in words is "two billion, one million, eight hundred thirty-five thousand, twenty-five".