6361616025 has 36 divisors (see below), whose sum is σ = 11550478108. Its totient is φ = 3346375680.

The previous prime is 6361616021. The next prime is 6361616033. The reversal of 6361616025 is 5206161636.

6361616025 is a `hidden beast` number, since 6 + 3 + 616 + 16 + 0 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 66145689 + 6295470336 = 8133^2 + 79344^2 .

It is not a de Polignac number, because 6361616025 - 2² = 6361616021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6361616021) 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 35 ways as a sum of consecutive naturals, for example, 177232 + ... + 210081.

Almost surely, 2^6361616025 is an apocalyptic number.

It is an amenable number.

6361616025 is a deficient number, since it is larger than the sum of its proper divisors (5188862083).

6361616025 is a wasteful number, since it uses less digits than its factorization.

6361616025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387402 (or 387394 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6361616025 is about 79759.7393739473. The cubic root of 6361616025 is about 1852.9163668236.

The spelling of 6361616025 in words is "six billion, three hundred sixty-one million, six hundred sixteen thousand, twenty-five".