2655620511 has 4 divisors (see below), whose sum is σ = 3540827352. Its totient is φ = 1770413672.

The previous prime is 2655620501. The next prime is 2655620581. The reversal of 2655620511 is 1150265562.

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

It is a cyclic number.

It is not a de Polignac number, because 2655620511 - 2⁹ = 2655619999 is a prime.

It is a super-2 number, since 2×2655620511² = 14104640596887802242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655620501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442603416 + ... + 442603421.

It is an arithmetic number, because the mean of its divisors is an integer number (885206838).

Almost surely, 2^2655620511 is an apocalyptic number.

2655620511 is a deficient number, since it is larger than the sum of its proper divisors (885206841).

2655620511 is an equidigital number, since it uses as much as digits as its factorization.

2655620511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885206840.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 2655620511 is about 51532.7130180432. The cubic root of 2655620511 is about 1384.8051546376.

The spelling of 2655620511 in words is "two billion, six hundred fifty-five million, six hundred twenty thousand, five hundred eleven".