25241320348921 has 16 divisors (see below), whose sum is σ = 25424501094144. Its totient is φ = 25058494710144.

The previous prime is 25241320348873. The next prime is 25241320348927. The reversal of 25241320348921 is 12984302314252.

It is a cyclic number.

It is not a de Polignac number, because 25241320348921 - 2²¹ = 25241318251769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25241320348927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124173531 + ... + 1124195983.

It is an arithmetic number, because the mean of its divisors is an integer number (1589031318384).

Almost surely, 2^{25241320348921} is an apocalyptic number.

It is an amenable number.

25241320348921 is a deficient number, since it is larger than the sum of its proper divisors (183180745223).

25241320348921 is a wasteful number, since it uses less digits than its factorization.

25241320348921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30000.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 25241320348921 in words is "twenty-five trillion, two hundred forty-one billion, three hundred twenty million, three hundred forty-eight thousand, nine hundred twenty-one".