655612055 has 32 divisors (see below), whose sum is σ = 953938944. Its totient is φ = 422263296.

The previous prime is 655612007. The next prime is 655612057. The reversal of 655612055 is 550216556.

It is not a de Polignac number, because 655612055 - 2¹⁰ = 655611031 is a prime.

It is a super-2 number, since 2×655612055² = 859654333322646050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655612057) 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, 441344 + ... + 442826.

It is an arithmetic number, because the mean of its divisors is an integer number (29810592).

Almost surely, 2^655612055 is an apocalyptic number.

655612055 is a deficient number, since it is larger than the sum of its proper divisors (298326889).

655612055 is a wasteful number, since it uses less digits than its factorization.

655612055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 655612055 is about 25604.9224759615. The cubic root of 655612055 is about 868.7249808712.

The spelling of 655612055 in words is "six hundred fifty-five million, six hundred twelve thousand, fifty-five".