2145255530 has 16 divisors (see below), whose sum is σ = 4212501984. Its totient is φ = 780092880.

The previous prime is 2145255499. The next prime is 2145255569. The reversal of 2145255530 is 355525412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9751052 + ... + 9751271.

It is an arithmetic number, because the mean of its divisors is an integer number (263281374).

Almost surely, 2^2145255530 is an apocalyptic number.

2145255530 is a deficient number, since it is larger than the sum of its proper divisors (2067246454).

2145255530 is a wasteful number, since it uses less digits than its factorization.

2145255530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19502341.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 2145255530 is about 46316.9032859495. The cubic root of 2145255530 is about 1289.7127998740.

The spelling of 2145255530 in words is "two billion, one hundred forty-five million, two hundred fifty-five thousand, five hundred thirty".