2500543233440 has 144 divisors (see below), whose sum is σ = 7018243045632. Its totient is φ = 839087940096.

The previous prime is 2500543233439. The next prime is 2500543233479. The reversal of 2500543233440 is 443323450052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2500543233440.

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 23 ways as a sum of consecutive naturals, for example, 3024572 + ... + 3761531.

It is an arithmetic number, because the mean of its divisors is an integer number (48737798928).

Almost surely, 2^{2500543233440} is an apocalyptic number.

2500543233440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500543233440 is an abundant number, since it is smaller than the sum of its proper divisors (4517699812192).

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

2500543233440 is a wasteful number, since it uses less digits than its factorization.

2500543233440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6786179 (or 6786164 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 2500543233440 its reverse (443323450052), we get a palindrome (2943866683492).

The spelling of 2500543233440 in words is "two trillion, five hundred billion, five hundred forty-three million, two hundred thirty-three thousand, four hundred forty".