6394506025 has 12 divisors (see below), whose sum is σ = 7930311004. Its totient is φ = 5114880000.

The previous prime is 6394506017. The next prime is 6394506101. The reversal of 6394506025 is 5206054936.

It can be written as a sum of positive squares in 6 ways, for example, as 433430761 + 5961075264 = 20819^2 + 77208^2 .

It is not a de Polignac number, because 6394506025 - 2³ = 6394506017 is a prime.

It is a super-2 number, since 2×6394506025² = 81779414607522601250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 226705 + ... + 253345.

Almost surely, 2^6394506025 is an apocalyptic number.

It is an amenable number.

6394506025 is a deficient number, since it is larger than the sum of its proper divisors (1535804979).

6394506025 is a wasteful number, since it uses less digits than its factorization.

6394506025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36252 (or 36247 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 6394506025 is about 79965.6552840030. The cubic root of 6394506025 is about 1856.1041152493.

The spelling of 6394506025 in words is "six billion, three hundred ninety-four million, five hundred six thousand, twenty-five".