25001973842413 has 16 divisors (see below), whose sum is σ = 26638634393280. Its totient is φ = 23397468966144.

The previous prime is 25001973842383. The next prime is 25001973842423. The reversal of 25001973842413 is 31424837910052.

It is a cyclic number.

It is not a de Polignac number, because 25001973842413 - 2¹³ = 25001973834221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001973842423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10345045 + ... + 12530917.

It is an arithmetic number, because the mean of its divisors is an integer number (1664914649580).

Almost surely, 2^{25001973842413} is an apocalyptic number.

It is an amenable number.

25001973842413 is a deficient number, since it is larger than the sum of its proper divisors (1636660550867).

25001973842413 is a wasteful number, since it uses less digits than its factorization.

25001973842413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193228.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 25001973842413 in words is "twenty-five trillion, one billion, nine hundred seventy-three million, eight hundred forty-two thousand, four hundred thirteen".