33155100055 has 24 divisors (see below), whose sum is σ = 50489254800. Its totient is φ = 20668112640.

The previous prime is 33155100053. The next prime is 33155100079. The reversal of 33155100055 is 55000155133.

It is not a de Polignac number, because 33155100055 - 2¹ = 33155100053 is a prime.

It is a super-2 number, since 2×33155100055² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33155099996 and 33155100032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33155100053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6148530 + ... + 6153919.

It is an arithmetic number, because the mean of its divisors is an integer number (2103718950).

Almost surely, 2^33155100055 is an apocalyptic number.

33155100055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

33155100055 is a deficient number, since it is larger than the sum of its proper divisors (17334154745).

33155100055 is a wasteful number, since it uses less digits than its factorization.

33155100055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12302479 (or 12302472 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 28.

Adding to 33155100055 its reverse (55000155133), we get a palindrome (88155255188).

The spelling of 33155100055 in words is "thirty-three billion, one hundred fifty-five million, one hundred thousand, fifty-five".