25078328250 has 64 divisors (see below), whose sum is σ = 62910432000. Its totient is φ = 6653908800.

The previous prime is 25078328213. The next prime is 25078328257. The reversal of 25078328250 is 5282387052.

It is not an unprimeable number, because it can be changed into a prime (25078328257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65236 + ... + 233264.

It is an arithmetic number, because the mean of its divisors is an integer number (982975500).

Almost surely, 2^25078328250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25078328250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31455216000).

25078328250 is an abundant number, since it is smaller than the sum of its proper divisors (37832103750).

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

25078328250 is a wasteful number, since it uses less digits than its factorization.

25078328250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168248 (or 168238 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 25078328250 in words is "twenty-five billion, seventy-eight million, three hundred twenty-eight thousand, two hundred fifty".