1992522155 has 16 divisors (see below), whose sum is σ = 2576128800. Its totient is φ = 1470728448.

The previous prime is 1992522151. The next prime is 1992522167. The reversal of 1992522155 is 5512252991.

It is a cyclic number.

It is not a de Polignac number, because 1992522155 - 2² = 1992522151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1992522151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170696 + ... + 181994.

It is an arithmetic number, because the mean of its divisors is an integer number (161008050).

Almost surely, 2^1992522155 is an apocalyptic number.

1992522155 is a deficient number, since it is larger than the sum of its proper divisors (583606645).

1992522155 is a wasteful number, since it uses less digits than its factorization.

1992522155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14030.

The product of its digits is 81000, while the sum is 41.

The square root of 1992522155 is about 44637.6764068203. The cubic root of 1992522155 is about 1258.3488397526.

The spelling of 1992522155 in words is "one billion, nine hundred ninety-two million, five hundred twenty-two thousand, one hundred fifty-five".