1172000055 has 16 divisors (see below), whose sum is σ = 1939862880. Its totient is φ = 603512448.

The previous prime is 1172000033. The next prime is 1172000087. The reversal of 1172000055 is 5500002711.

It is not a de Polignac number, because 1172000055 - 2⁶ = 1171999991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1171999995 and 1172000040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1346692 + ... + 1347561.

It is an arithmetic number, because the mean of its divisors is an integer number (121241430).

Almost surely, 2^1172000055 is an apocalyptic number.

1172000055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1172000055 is a deficient number, since it is larger than the sum of its proper divisors (767862825).

1172000055 is a wasteful number, since it uses less digits than its factorization.

1172000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694290.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 1172000055 is about 34234.4863405309. The cubic root of 1172000055 is about 1054.3283326833.

Adding to 1172000055 its reverse (5500002711), we get a palindrome (6672002766).

The spelling of 1172000055 in words is "one billion, one hundred seventy-two million, fifty-five", and thus it is an aban number.