647410025 has 12 divisors (see below), whose sum is σ = 803263692. Its totient is φ = 517621440.

The previous prime is 647410013. The next prime is 647410061. The reversal of 647410025 is 520014746.

647410025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 76247824 + 571162201 = 8732^2 + 23899^2 .

It is not a de Polignac number, because 647410025 - 2¹⁰ = 647409001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 647410025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41627 + ... + 55023.

It is an arithmetic number, because the mean of its divisors is an integer number (66938641).

Almost surely, 2^647410025 is an apocalyptic number.

It is an amenable number.

647410025 is a deficient number, since it is larger than the sum of its proper divisors (155853667).

647410025 is a wasteful number, since it uses less digits than its factorization.

647410025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15340 (or 15335 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 647410025 is about 25444.2532804561. The cubic root of 647410025 is about 865.0870417049.

The spelling of 647410025 in words is "six hundred forty-seven million, four hundred ten thousand, twenty-five".