265530554055 has 32 divisors (see below), whose sum is σ = 508366192320. Its totient is φ = 130722733440.

The previous prime is 265530553997. The next prime is 265530554059. The reversal of 265530554055 is 550455035562.

265530554055 is a `hidden beast` number, since 2 + 6 + 5 + 53 + 0 + 5 + 540 + 55 = 666.

It is not a de Polignac number, because 265530554055 - 2⁶ = 265530553991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 265530554055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265530554059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75647976 + ... + 75651485.

It is an arithmetic number, because the mean of its divisors is an integer number (15886443510).

Almost surely, 2^265530554055 is an apocalyptic number.

265530554055 is a deficient number, since it is larger than the sum of its proper divisors (242835638265).

265530554055 is a wasteful number, since it uses less digits than its factorization.

265530554055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151299488 (or 151299482 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 45.

The spelling of 265530554055 in words is "two hundred sixty-five billion, five hundred thirty million, five hundred fifty-four thousand, fifty-five".