25648513046 has 8 divisors (see below), whose sum is σ = 41432213424. Its totient is φ = 11837775240.

The previous prime is 25648513039. The next prime is 25648513057. The reversal of 25648513046 is 64031584652.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25648512988 and 25648513006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493240610 + ... + 493240661.

It is an arithmetic number, because the mean of its divisors is an integer number (5179026678).

Almost surely, 2^25648513046 is an apocalyptic number.

25648513046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25648513046 is a deficient number, since it is larger than the sum of its proper divisors (15783700378).

25648513046 is a wasteful number, since it uses less digits than its factorization.

25648513046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986481286.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 25648513046 in words is "twenty-five billion, six hundred forty-eight million, five hundred thirteen thousand, forty-six".