6246405625 has 20 divisors (see below), whose sum is σ = 8264670084. Its totient is φ = 4703168000.

The previous prime is 6246405623. The next prime is 6246405631. The reversal of 6246405625 is 5265046426.

It can be written as a sum of positive squares in 10 ways, for example, as 2866959936 + 3379445689 = 53544^2 + 58133^2 .

It is not a de Polignac number, because 6246405625 - 2¹ = 6246405623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6246405623) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 283324 + ... + 304573.

Almost surely, 2^6246405625 is an apocalyptic number.

It is an amenable number.

6246405625 is a deficient number, since it is larger than the sum of its proper divisors (2018264459).

6246405625 is an equidigital number, since it uses as much as digits as its factorization.

6246405625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587934 (or 587919 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The square root of 6246405625 is about 79034.2054113281. The cubic root of 6246405625 is about 1841.6625671874.

The spelling of 6246405625 in words is "six billion, two hundred forty-six million, four hundred five thousand, six hundred twenty-five".