25000025250 has 64 divisors (see below), whose sum is σ = 62774030592. Its totient is φ = 6626720000.

The previous prime is 25000025207. The next prime is 25000025251. The reversal of 25000025250 is 5252000052.

25000025250 is a modest number, since divided by 25250 gives 250 as remainder.

It is not an unprimeable number, because it can be changed into a prime (25000025251) 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, 25450 + ... + 225050.

It is an arithmetic number, because the mean of its divisors is an integer number (980844228).

Almost surely, 2^25000025250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25000025250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31387015296).

25000025250 is an abundant number, since it is smaller than the sum of its proper divisors (37774005342).

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

25000025250 is a wasteful number, since it uses less digits than its factorization.

25000025250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199788 (or 199778 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The spelling of 25000025250 in words is "twenty-five billion, twenty-five thousand, two hundred fifty".