2125505530 has 8 divisors (see below), whose sum is σ = 3825909972. Its totient is φ = 850202208.

The previous prime is 2125505519. The next prime is 2125505531. The reversal of 2125505530 is 355055212.

It can be written as a sum of positive squares in 2 ways, for example, as 2074711401 + 50794129 = 45549^2 + 7127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2125505530³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2125505531) 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 3 ways as a sum of consecutive naturals, for example, 106275267 + ... + 106275286.

Almost surely, 2^2125505530 is an apocalyptic number.

2125505530 is a deficient number, since it is larger than the sum of its proper divisors (1700404442).

2125505530 is a wasteful number, since it uses less digits than its factorization.

2125505530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212550560.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 2125505530 is about 46103.2052031093. The cubic root of 2125505530 is about 1285.7427370482.

The spelling of 2125505530 in words is "two billion, one hundred twenty-five million, five hundred five thousand, five hundred thirty".