25301251000 has 64 divisors (see below), whose sum is σ = 59954544000. Its totient is φ = 9992361600.

The previous prime is 25301250973. The next prime is 25301251007. The reversal of 25301251000 is 15210352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25301251007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81135 + ... + 239134.

It is an arithmetic number, because the mean of its divisors is an integer number (936789750).

Almost surely, 2^25301251000 is an apocalyptic number.

25301251000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25301251000 is an abundant number, since it is smaller than the sum of its proper divisors (34653293000).

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

25301251000 is a wasteful number, since it uses less digits than its factorization.

25301251000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320369 (or 320355 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

Adding to 25301251000 its reverse (15210352), we get a palindrome (25316461352).

The spelling of 25301251000 in words is "twenty-five billion, three hundred one million, two hundred fifty-one thousand".