25421544512452 has 48 divisors (see below), whose sum is σ = 50248072163520. Its totient is φ = 11147343132800.

The previous prime is 25421544512447. The next prime is 25421544512467.

25421544512452 is nontrivially palindromic in base 10.

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, 6927778 + ... + 9941689.

It is an arithmetic number, because the mean of its divisors is an integer number (1046834836740).

Almost surely, 2^{25421544512452} is an apocalyptic number.

25421544512452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25421544512452 is a deficient number, since it is larger than the sum of its proper divisors (24826527651068).

25421544512452 is a wasteful number, since it uses less digits than its factorization.

25421544512452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16870692 (or 16870690 counting only the distinct ones).

The product of its digits is 2560000, while the sum is 46.

The spelling of 25421544512452 in words is "twenty-five trillion, four hundred twenty-one billion, five hundred forty-four million, five hundred twelve thousand, four hundred fifty-two".