25502505050 has 48 divisors (see below), whose sum is σ = 52259360544. Its totient is φ = 9181800000.

The previous prime is 25502505047. The next prime is 25502505101. The reversal of 25502505050 is 5050520552.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173996 + ... + 285095.

It is an arithmetic number, because the mean of its divisors is an integer number (1088736678).

Almost surely, 2^25502505050 is an apocalyptic number.

25502505050 is an abundant number, since it is smaller than the sum of its proper divisors (26756855494).

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

25502505050 is a wasteful number, since it uses less digits than its factorization.

25502505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459215 (or 459210 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The spelling of 25502505050 in words is "twenty-five billion, five hundred two million, five hundred five thousand, fifty".