25304538460 has 12 divisors (see below), whose sum is σ = 53139530808. Its totient is φ = 10121815376.

The previous prime is 25304538401. The next prime is 25304538463. The reversal of 25304538460 is 6483540352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25304538463) 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 3 ways as a sum of consecutive naturals, for example, 632613442 + ... + 632613481.

It is an arithmetic number, because the mean of its divisors is an integer number (4428294234).

Almost surely, 2^25304538460 is an apocalyptic number.

25304538460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25304538460 is an abundant number, since it is smaller than the sum of its proper divisors (27834992348).

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

25304538460 is a wasteful number, since it uses less digits than its factorization.

25304538460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265226932 (or 1265226930 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 25304538460 in words is "twenty-five billion, three hundred four million, five hundred thirty-eight thousand, four hundred sixty".