25485416247 has 8 divisors (see below), whose sum is σ = 33989590656. Its totient is φ = 16985759672.

The previous prime is 25485416219. The next prime is 25485416251. The reversal of 25485416247 is 74261458452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25485416247 - 2⁷ = 25485416119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25485416196 and 25485416205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25485416207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116273 + ... + 1138874.

It is an arithmetic number, because the mean of its divisors is an integer number (4248698832).

Almost surely, 2^25485416247 is an apocalyptic number.

25485416247 is a deficient number, since it is larger than the sum of its proper divisors (8504174409).

25485416247 is a wasteful number, since it uses less digits than its factorization.

25485416247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258917.

The product of its digits is 2150400, while the sum is 48.

The spelling of 25485416247 in words is "twenty-five billion, four hundred eighty-five million, four hundred sixteen thousand, two hundred forty-seven".