1329260055 has 16 divisors (see below), whose sum is σ = 2127279840. Its totient is φ = 708784128.

The previous prime is 1329260033. The next prime is 1329260059. The reversal of 1329260055 is 5500629231.

It is not a de Polignac number, because 1329260055 - 2⁶ = 1329259991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1329259998 and 1329260025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329260059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106419 + ... + 118251.

It is an arithmetic number, because the mean of its divisors is an integer number (132954990).

Almost surely, 2^1329260055 is an apocalyptic number.

1329260055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1329260055 is a deficient number, since it is larger than the sum of its proper divisors (798019785).

1329260055 is a wasteful number, since it uses less digits than its factorization.

1329260055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19330.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 1329260055 is about 36459.0188430791. The cubic root of 1329260055 is about 1099.5204672920.

Adding to 1329260055 its reverse (5500629231), we get a palindrome (6829889286).

The spelling of 1329260055 in words is "one billion, three hundred twenty-nine million, two hundred sixty thousand, fifty-five".