2051326655 has 8 divisors (see below), whose sum is σ = 2813248032. Its totient is φ = 1406623968.

The previous prime is 2051326577. The next prime is 2051326661. The reversal of 2051326655 is 5566231502.

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 2051326655 - 2²⁸ = 1782891199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 58609333 = 2051326655 / (2 + 0 + 5 + 1 + 3 + 2 + 6 + 6 + 5 + 5).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29304632 + ... + 29304701.

It is an arithmetic number, because the mean of its divisors is an integer number (351656004).

Almost surely, 2^2051326655 is an apocalyptic number.

2051326655 is a deficient number, since it is larger than the sum of its proper divisors (761921377).

2051326655 is an equidigital number, since it uses as much as digits as its factorization.

2051326655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58609345.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 2051326655 is about 45291.5737748204. The cubic root of 2051326655 is about 1270.6080654003.

The spelling of 2051326655 in words is "two billion, fifty-one million, three hundred twenty-six thousand, six hundred fifty-five".