3125616530 has 16 divisors (see below), whose sum is σ = 5629350744. Its totient is φ = 1249526400.

The previous prime is 3125616467. The next prime is 3125616569. The reversal of 3125616530 is 356165213.

It can be written as a sum of positive squares in 4 ways, for example, as 2068521361 + 1057095169 = 45481^2 + 32513^2 .

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, 71621 + ... + 106680.

Almost surely, 2^3125616530 is an apocalyptic number.

3125616530 is a deficient number, since it is larger than the sum of its proper divisors (2503734214).

3125616530 is a wasteful number, since it uses less digits than its factorization.

3125616530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180061.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 3125616530 is about 55907.2135774982. The cubic root of 3125616530 is about 1462.1050091659.

The spelling of 3125616530 in words is "three billion, one hundred twenty-five million, six hundred sixteen thousand, five hundred thirty".