265872051 has 20 divisors (see below), whose sum is σ = 402204000. Its totient is φ = 175000176.

The previous prime is 265872043. The next prime is 265872077. The reversal of 265872051 is 150278562.

It is a happy number.

265872051 is a `hidden beast` number, since 2 + 6 + 587 + 20 + 51 = 666.

It is not a de Polignac number, because 265872051 - 2³ = 265872043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265871997 and 265872015.

It is not an unprimeable number, because it can be changed into a prime (265872011) 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 19 ways as a sum of consecutive naturals, for example, 14376 + ... + 27173.

It is an arithmetic number, because the mean of its divisors is an integer number (20110200).

Almost surely, 2^265872051 is an apocalyptic number.

265872051 is a deficient number, since it is larger than the sum of its proper divisors (136331949).

265872051 is an equidigital number, since it uses as much as digits as its factorization.

265872051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41640 (or 41631 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 265872051 is about 16305.5834302241. The cubic root of 265872051 is about 643.0196261667.

The spelling of 265872051 in words is "two hundred sixty-five million, eight hundred seventy-two thousand, fifty-one".