25211305050 has 24 divisors (see below), whose sum is σ = 62524036896. Its totient is φ = 6723014640.

The previous prime is 25211305043. The next prime is 25211305057. The reversal of 25211305050 is 5050311252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25211305043) and next prime (25211305057).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25211305050.

It is not an unprimeable number, because it can be changed into a prime (25211305057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84037534 + ... + 84037833.

It is an arithmetic number, because the mean of its divisors is an integer number (2605168204).

Almost surely, 2^25211305050 is an apocalyptic number.

25211305050 is an abundant number, since it is smaller than the sum of its proper divisors (37312731846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25211305050 is a wasteful number, since it uses less digits than its factorization.

25211305050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168075382 (or 168075377 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The spelling of 25211305050 in words is "twenty-five billion, two hundred eleven million, three hundred five thousand, fifty".