265265140250 has 64 divisors (see below), whose sum is σ = 554318024832. Its totient is φ = 94216752000.

The previous prime is 265265140237. The next prime is 265265140297. The reversal of 265265140250 is 52041562562.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1003379 + ... + 1239878.

It is an arithmetic number, because the mean of its divisors is an integer number (8661219138).

Almost surely, 2^265265140250 is an apocalyptic number.

265265140250 is an abundant number, since it is smaller than the sum of its proper divisors (289052884582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265265140250 is a wasteful number, since it uses less digits than its factorization.

265265140250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243328 (or 2243318 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 265265140250 in words is "two hundred sixty-five billion, two hundred sixty-five million, one hundred forty thousand, two hundred fifty".