4001335025 has 24 divisors (see below), whose sum is σ = 5037772800. Its totient is φ = 3152338560.

The previous prime is 4001334971. The next prime is 4001335027. The reversal of 4001335025 is 5205331004.

It is not a de Polignac number, because 4001335025 - 2²⁰ = 4000286449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4001335027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430376 + ... + 439574.

It is an arithmetic number, because the mean of its divisors is an integer number (209907200).

Almost surely, 2^4001335025 is an apocalyptic number.

It is an amenable number.

4001335025 is a deficient number, since it is larger than the sum of its proper divisors (1036437775).

4001335025 is a wasteful number, since it uses less digits than its factorization.

4001335025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9473 (or 9468 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 4001335025 is about 63256.1066222068. The cubic root of 4001335025 is about 1587.5776339987.

Adding to 4001335025 its reverse (5205331004), we get a palindrome (9206666029).

The spelling of 4001335025 in words is "four billion, one million, three hundred thirty-five thousand, twenty-five".