25050505050305 has 48 divisors (see below), whose sum is σ = 35640297308880. Its totient is φ = 16847683227648.

The previous prime is 25050505050253. The next prime is 25050505050383. The reversal of 25050505050305 is 50305050505052.

It can be written as a sum of positive squares in 8 ways, for example, as 3084073359409 + 21966431690896 = 1756153^2 + 4686836^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25050505050305 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38227577 + ... + 38877353.

It is an arithmetic number, because the mean of its divisors is an integer number (742506193935).

Almost surely, 2^{25050505050305} is an apocalyptic number.

It is an amenable number.

25050505050305 is a deficient number, since it is larger than the sum of its proper divisors (10589792258575).

25050505050305 is a wasteful number, since it uses less digits than its factorization.

25050505050305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652818 (or 652811 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 35.

Adding to 25050505050305 its reverse (50305050505052), we get a palindrome (75355555555357).

The spelling of 25050505050305 in words is "twenty-five trillion, fifty billion, five hundred five million, fifty thousand, three hundred five".