2155551303 has 8 divisors (see below), whose sum is σ = 2966780416. Its totient is φ = 1390678200.

The previous prime is 2155551221. The next prime is 2155551317. The reversal of 2155551303 is 3031555512.

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

It is not a de Polignac number, because 2155551303 - 2¹⁰ = 2155550279 is a prime.

It is a super-3 number, since 3×2155551303³ (a number of 29 digits) contains 333 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 (2155551383) 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, 11588893 + ... + 11589078.

It is an arithmetic number, because the mean of its divisors is an integer number (370847552).

Almost surely, 2^2155551303 is an apocalyptic number.

2155551303 is a deficient number, since it is larger than the sum of its proper divisors (811229113).

2155551303 is a wasteful number, since it uses less digits than its factorization.

2155551303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23178005.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 2155551303 is about 46427.9151265701. The cubic root of 2155551303 is about 1291.7727571069.

The spelling of 2155551303 in words is "two billion, one hundred fifty-five million, five hundred fifty-one thousand, three hundred three".