25502430000 has 100 divisors (see below), whose sum is σ = 82325341208. Its totient is φ = 6800640000.

The previous prime is 25502429947. The next prime is 25502430017. The reversal of 25502430000 is 3420552.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 395041 + ... + 455040.

Almost surely, 2^25502430000 is an apocalyptic number.

25502430000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25502430000 is an abundant number, since it is smaller than the sum of its proper divisors (56822911208).

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

25502430000 is an equidigital number, since it uses as much as digits as its factorization.

25502430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850112 (or 850091 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

Adding to 25502430000 its reverse (3420552), we get a palindrome (25505850552).

The spelling of 25502430000 in words is "twenty-five billion, five hundred two million, four hundred thirty thousand".