2055655551 has 8 divisors (see below), whose sum is σ = 2744002864. Its totient is φ = 1368872640.

The previous prime is 2055655541. The next prime is 2055655573. The reversal of 2055655551 is 1555565502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2055655551 - 2⁵ = 2055655519 is a prime.

It is a super-2 number, since 2×2055655551² = 8451439488714227202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055655541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388030 + ... + 393291.

It is an arithmetic number, because the mean of its divisors is an integer number (343000358).

Almost surely, 2^2055655551 is an apocalyptic number.

2055655551 is a deficient number, since it is larger than the sum of its proper divisors (688347313).

2055655551 is an equidigital number, since it uses as much as digits as its factorization.

2055655551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782201.

The product of its (nonzero) digits is 187500, while the sum is 39.

The square root of 2055655551 is about 45339.3377874005. The cubic root of 2055655551 is about 1271.5012216396.

The spelling of 2055655551 in words is "two billion, fifty-five million, six hundred fifty-five thousand, five hundred fifty-one".