25485473007009 has 64 divisors (see below), whose sum is σ = 40469570265600. Its totient is φ = 15809664727296.

The previous prime is 25485473006989. The next prime is 25485473007031. The reversal of 25485473007009 is 90070037458452.

It is a happy number.

25485473007009 is a `hidden beast` number, since 25 + 4 + 8 + 547 + 3 + 0 + 0 + 70 + 0 + 9 = 666.

It is not a de Polignac number, because 25485473007009 - 2⁸ = 25485473006753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25485473007079) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 138436347 + ... + 138620319.

It is an arithmetic number, because the mean of its divisors is an integer number (632337035400).

Almost surely, 2^{25485473007009} is an apocalyptic number.

It is an amenable number.

25485473007009 is a deficient number, since it is larger than the sum of its proper divisors (14984097258591).

25485473007009 is a wasteful number, since it uses less digits than its factorization.

25485473007009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190071 (or 190065 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 25485473007009 in words is "twenty-five trillion, four hundred eighty-five billion, four hundred seventy-three million, seven thousand, nine".