25002300109440 has 128 divisors (see below), whose sum is σ = 79703090985600. Its totient is φ = 6666589048832.

The previous prime is 25002300109439. The next prime is 25002300109469. The reversal of 25002300109440 is 4490100320052.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×25002300109440² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25002300109398 and 25002300109407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17990554 + ... + 19330406.

It is an arithmetic number, because the mean of its divisors is an integer number (622680398325).

Almost surely, 2^{25002300109440} is an apocalyptic number.

25002300109440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25002300109440 is an abundant number, since it is smaller than the sum of its proper divisors (54700790876160).

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

25002300109440 is a wasteful number, since it uses less digits than its factorization.

25002300109440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349594 (or 1349582 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 25002300109440 its reverse (4490100320052), we get a palindrome (29492400429492).

The spelling of 25002300109440 in words is "twenty-five trillion, two billion, three hundred million, one hundred nine thousand, four hundred forty".