4020535025 has 12 divisors (see below), whose sum is σ = 5368961052. Its totient is φ = 2969010240.

The previous prime is 4020535009. The next prime is 4020535067. The reversal of 4020535025 is 5205350204.

It can be written as a sum of positive squares in 6 ways, for example, as 1703460529 + 2317074496 = 41273^2 + 48136^2 .

It is not a de Polignac number, because 4020535025 - 2⁴ = 4020535009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4020534985 and 4020535003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6185114 + ... + 6185763.

It is an arithmetic number, because the mean of its divisors is an integer number (447413421).

Almost surely, 2^4020535025 is an apocalyptic number.

It is an amenable number.

4020535025 is a deficient number, since it is larger than the sum of its proper divisors (1348426027).

4020535025 is a wasteful number, since it uses less digits than its factorization.

4020535025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12370900 (or 12370895 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 4020535025 is about 63407.6890053564. The cubic root of 4020535025 is about 1590.1128600189.

Adding to 4020535025 its reverse (5205350204), we get a palindrome (9225885229).

The spelling of 4020535025 in words is "four billion, twenty million, five hundred thirty-five thousand, twenty-five".