25048463805 has 12 divisors (see below), whose sum is σ = 43417337340. Its totient is φ = 13359180672.

The previous prime is 25048463801. The next prime is 25048463809. The reversal of 25048463805 is 50836484052.

25048463805 is a `hidden beast` number, since 2 + 5 + 0 + 4 + 8 + 4 + 638 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (25048463801) and next prime (25048463809).

It can be written as a sum of positive squares in 2 ways, for example, as 10503380196 + 14545083609 = 102486^2 + 120603^2 .

It is not a de Polignac number, because 25048463805 - 2² = 25048463801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 556632529 = 25048463805 / (2 + 5 + 0 + 4 + 8 + 4 + 6 + 3 + 8 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25048463801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278316220 + ... + 278316309.

It is an arithmetic number, because the mean of its divisors is an integer number (3618111445).

Almost surely, 2^25048463805 is an apocalyptic number.

It is an amenable number.

25048463805 is a deficient number, since it is larger than the sum of its proper divisors (18368873535).

25048463805 is a wasteful number, since it uses less digits than its factorization.

25048463805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556632540 (or 556632537 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 25048463805 in words is "twenty-five billion, forty-eight million, four hundred sixty-three thousand, eight hundred five".