25445230000 has 50 divisors (see below), whose sum is σ = 61605470564. Its totient is φ = 10178088000.

The previous prime is 25445229959. The next prime is 25445230061. The reversal of 25445230000 is 3254452.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (25).

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 9 ways as a sum of consecutive naturals, for example, 1262262 + ... + 1282261.

Almost surely, 2^25445230000 is an apocalyptic number.

25445230000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25445230000 is an abundant number, since it is smaller than the sum of its proper divisors (36160240564).

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

25445230000 is an equidigital number, since it uses as much as digits as its factorization.

25445230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544551 (or 2544530 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 25445230000 its reverse (3254452), we get a palindrome (25448484452).

The spelling of 25445230000 in words is "twenty-five billion, four hundred forty-five million, two hundred thirty thousand".