25020069217 has 32 divisors (see below), whose sum is σ = 30512885760. Its totient is φ = 20204424000.

The previous prime is 25020069127. The next prime is 25020069229. The reversal of 25020069217 is 71296002052.

It is a cyclic number.

It is not a de Polignac number, because 25020069217 - 2¹⁵ = 25020036449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25020099217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 777742 + ... + 809272.

It is an arithmetic number, because the mean of its divisors is an integer number (953527680).

Almost surely, 2^25020069217 is an apocalyptic number.

It is an amenable number.

25020069217 is a deficient number, since it is larger than the sum of its proper divisors (5492816543).

25020069217 is a wasteful number, since it uses less digits than its factorization.

25020069217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31765.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 25020069217 in words is "twenty-five billion, twenty million, sixty-nine thousand, two hundred seventeen".