2655642551 has 8 divisors (see below), whose sum is σ = 2785448640. Its totient is φ = 2528890848.

The previous prime is 2655642449. The next prime is 2655642601. The reversal of 2655642551 is 1552465562.

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 2655642551 - 2²⁶ = 2588533687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2655642499 and 2655642508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655642151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761816 + ... + 765293.

It is an arithmetic number, because the mean of its divisors is an integer number (348181080).

Almost surely, 2^2655642551 is an apocalyptic number.

2655642551 is a deficient number, since it is larger than the sum of its proper divisors (129806089).

2655642551 is a wasteful number, since it uses less digits than its factorization.

2655642551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527193.

The product of its digits is 360000, while the sum is 41.

The square root of 2655642551 is about 51532.9268623470. The cubic root of 2655642551 is about 1384.8089856344.

The spelling of 2655642551 in words is "two billion, six hundred fifty-five million, six hundred forty-two thousand, five hundred fifty-one".