655065055 has 4 divisors (see below), whose sum is σ = 786078072. Its totient is φ = 524052040.

The previous prime is 655065049. The next prime is 655065067. The reversal of 655065055 is 550560556.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-655065055 is a prime.

It is a super-2 number, since 2×655065055² = 858220452564306050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65506501 + ... + 65506510.

It is an arithmetic number, because the mean of its divisors is an integer number (196519518).

Almost surely, 2^655065055 is an apocalyptic number.

655065055 is a deficient number, since it is larger than the sum of its proper divisors (131013017).

655065055 is a wasteful number, since it uses less digits than its factorization.

655065055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131013016.

The product of its (nonzero) digits is 112500, while the sum is 37.

The square root of 655065055 is about 25594.2387071778. The cubic root of 655065055 is about 868.4833111323.

The spelling of 655065055 in words is "six hundred fifty-five million, sixty-five thousand, fifty-five".