265550655 has 8 divisors (see below), whose sum is σ = 424881072. Its totient is φ = 141627008.

The previous prime is 265550639. The next prime is 265550657. The reversal of 265550655 is 556055562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265550655 - 2⁴ = 265550639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265550657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8851674 + ... + 8851703.

It is an arithmetic number, because the mean of its divisors is an integer number (53110134).

Almost surely, 2^265550655 is an apocalyptic number.

265550655 is a deficient number, since it is larger than the sum of its proper divisors (159330417).

265550655 is a wasteful number, since it uses less digits than its factorization.

265550655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17703385.

The product of its (nonzero) digits is 225000, while the sum is 39.

The square root of 265550655 is about 16295.7250529088. The cubic root of 265550655 is about 642.7604196984.

The spelling of 265550655 in words is "two hundred sixty-five million, five hundred fifty thousand, six hundred fifty-five".