25261083500 has 24 divisors (see below), whose sum is σ = 55170207456. Its totient is φ = 10104433200.

The previous prime is 25261083493. The next prime is 25261083541. The reversal of 25261083500 is 538016252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25260584 + ... + 25261583.

It is an arithmetic number, because the mean of its divisors is an integer number (2298758644).

Almost surely, 2^25261083500 is an apocalyptic number.

25261083500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25261083500 is an abundant number, since it is smaller than the sum of its proper divisors (29909123956).

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

25261083500 is a wasteful number, since it uses less digits than its factorization.

25261083500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50522186 (or 50522174 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 25261083500 its reverse (538016252), we get a palindrome (25799099752).

The spelling of 25261083500 in words is "twenty-five billion, two hundred sixty-one million, eighty-three thousand, five hundred".