265425001 has 4 divisors (see below), whose sum is σ = 266383492. Its totient is φ = 264466512.

The previous prime is 265424983. The next prime is 265425031. The reversal of 265425001 is 100524562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62789776 + 202635225 = 7924^2 + 14235^2 .

It is a cyclic number.

It is not a de Polignac number, because 265425001 - 2²⁷ = 131207273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265425031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478830 + ... + 479383.

It is an arithmetic number, because the mean of its divisors is an integer number (66595873).

Almost surely, 2^265425001 is an apocalyptic number.

It is an amenable number.

265425001 is a deficient number, since it is larger than the sum of its proper divisors (958491).

265425001 is an equidigital number, since it uses as much as digits as its factorization.

265425001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958490.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 265425001 is about 16291.8691683919. The cubic root of 265425001 is about 642.6590226472.

Adding to 265425001 its reverse (100524562), we get a palindrome (365949563).

The spelling of 265425001 in words is "two hundred sixty-five million, four hundred twenty-five thousand, one".