2155013332 has 6 divisors (see below), whose sum is σ = 3771273338. Its totient is φ = 1077506664.

The previous prime is 2155013293. The next prime is 2155013339. The reversal of 2155013332 is 2333105512.

It can be written as a sum of positive squares in only one way, i.e., 1793861316 + 361152016 = 42354^2 + 19004^2 .

It is a super-2 number, since 2×2155013332² = 9288164922195484448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2155013297 and 2155013306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155013339) 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 as a sum of consecutive naturals, namely, 269376663 + ... + 269376670.

Almost surely, 2^2155013332 is an apocalyptic number.

It is an amenable number.

2155013332 is a deficient number, since it is larger than the sum of its proper divisors (1616260006).

2155013332 is a wasteful number, since it uses less digits than its factorization.

2155013332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538753337 (or 538753335 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 2155013332 is about 46422.1211492969. The cubic root of 2155013332 is about 1291.6652835800.

Adding to 2155013332 its reverse (2333105512), we get a palindrome (4488118844).

The spelling of 2155013332 in words is "two billion, one hundred fifty-five million, thirteen thousand, three hundred thirty-two".