2155553310 has 32 divisors (see below), whose sum is σ = 5200146720. Its totient is φ = 571834368.

The previous prime is 2155553299. The next prime is 2155553317. The reversal of 2155553310 is 133555512.

It is a super-2 number, since 2×2155553310² = 9292820144503912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155553317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180355 + ... + 191934.

It is an arithmetic number, because the mean of its divisors is an integer number (162504585).

Almost surely, 2^2155553310 is an apocalyptic number.

2155553310 is an abundant number, since it is smaller than the sum of its proper divisors (3044593410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155553310 is a wasteful number, since it uses less digits than its factorization.

2155553310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372492.

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

The square root of 2155553310 is about 46427.9367407168. The cubic root of 2155553310 is about 1291.7731580232.

The spelling of 2155553310 in words is "two billion, one hundred fifty-five million, five hundred fifty-three thousand, three hundred ten".