265256501260 has 48 divisors (see below), whose sum is σ = 564968500992. Its totient is φ = 104592600000.

The previous prime is 265256501243. The next prime is 265256501269. The reversal of 265256501260 is 62105652562.

It is a super-2 number, since 2×265256501260² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (265256501269) 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 15 ways as a sum of consecutive naturals, for example, 15968119 + ... + 15984721.

It is an arithmetic number, because the mean of its divisors is an integer number (11770177104).

Almost surely, 2^265256501260 is an apocalyptic number.

265256501260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265256501260 is an abundant number, since it is smaller than the sum of its proper divisors (299711999732).

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

265256501260 is a wasteful number, since it uses less digits than its factorization.

265256501260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27934 (or 27932 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 265256501260 in words is "two hundred sixty-five billion, two hundred fifty-six million, five hundred one thousand, two hundred sixty".