265543000530 has 16 divisors (see below), whose sum is σ = 637303201344. Its totient is φ = 70811466800.

The previous prime is 265543000511. The next prime is 265543000601. The reversal of 265543000530 is 35000345562.

It is a junction number, because it is equal to n+sod(n) for n = 265543000491 and 265543000500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4425716646 + ... + 4425716705.

It is an arithmetic number, because the mean of its divisors is an integer number (39831450084).

Almost surely, 2^265543000530 is an apocalyptic number.

265543000530 is an abundant number, since it is smaller than the sum of its proper divisors (371760200814).

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

265543000530 is a wasteful number, since it uses less digits than its factorization.

265543000530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8851433361.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 265543000530 in words is "two hundred sixty-five billion, five hundred forty-three million, five hundred thirty", and thus it is an aban number.