265215001 has 12 divisors (see below), whose sum is σ = 284461632. Its totient is φ = 246798288.

The previous prime is 265214969. The next prime is 265215017. The reversal of 265215001 is 100512562.

It is not a de Polignac number, because 265215001 - 2⁵ = 265214969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265285001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27276 + ... + 35698.

It is an arithmetic number, because the mean of its divisors is an integer number (23705136).

Almost surely, 2^265215001 is an apocalyptic number.

It is an amenable number.

265215001 is a deficient number, since it is larger than the sum of its proper divisors (19246631).

265215001 is an equidigital number, since it uses as much as digits as its factorization.

265215001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8520 (or 8483 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 265215001 is about 16285.4229604269. The cubic root of 265215001 is about 642.4894907616.

Adding to 265215001 its reverse (100512562), we get a palindrome (365727563).

The spelling of 265215001 in words is "two hundred sixty-five million, two hundred fifteen thousand, one".