25454422445451 has 16 divisors (see below), whose sum is σ = 34032244348800. Its totient is φ = 16923166294208.

The previous prime is 25454422445447. The next prime is 25454422445483. The reversal of 25454422445451 is 15454422445452.

It is a cyclic number.

It is not a de Polignac number, because 25454422445451 - 2² = 25454422445447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25454422445394 and 25454422445403.

It is not an unprimeable number, because it can be changed into a prime (25454422445401) 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, 5577441 + ... + 9056306.

It is an arithmetic number, because the mean of its divisors is an integer number (2127015271800).

Almost surely, 2^{25454422445451} is an apocalyptic number.

25454422445451 is a deficient number, since it is larger than the sum of its proper divisors (8577821903349).

25454422445451 is a wasteful number, since it uses less digits than its factorization.

25454422445451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14635338.

The product of its digits is 20480000, while the sum is 51.

Subtracting from 25454422445451 its reverse (15454422445452), we obtain a palindrome (9999999999999).

The spelling of 25454422445451 in words is "twenty-five trillion, four hundred fifty-four billion, four hundred twenty-two million, four hundred forty-five thousand, four hundred fifty-one".