6407202025 has 27 divisors (see below), whose sum is σ = 9246104919. Its totient is φ = 4391588880.

The previous prime is 6407201987. The next prime is 6407202071. The reversal of 6407202025 is 5202027046.

The square root of 6407202025 is 80045.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2306592729 + 4100609296 = 48027^2 + 64036^2 .

It is not a de Polignac number, because 6407202025 - 2⁹ = 6407201513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6407201984 and 6407202002.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 2800432 + ... + 2802718.

Almost surely, 2^6407202025 is an apocalyptic number.

6407202025 is the 80045-th square number.

6407202025 is the 40023-rd centered octagonal number.

It is an amenable number.

6407202025 is a deficient number, since it is larger than the sum of its proper divisors (2838902894).

6407202025 is an frugal number, since it uses more digits than its factorization.

6407202025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4598 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The cubic root of 6407202025 is about 1857.3317065141.

The spelling of 6407202025 in words is "six billion, four hundred seven million, two hundred two thousand, twenty-five".