25421053422045 has 64 divisors (see below), whose sum is σ = 41259997900800. Its totient is φ = 13363067577600.

The previous prime is 25421053422013. The next prime is 25421053422103. The reversal of 25421053422045 is 54022435012452.

It is not a de Polignac number, because 25421053422045 - 2⁵ = 25421053422013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25421053421994 and 25421053422012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4498502470 + ... + 4498508120.

It is an arithmetic number, because the mean of its divisors is an integer number (644687467200).

Almost surely, 2^{25421053422045} is an apocalyptic number.

It is an amenable number.

25421053422045 is a deficient number, since it is larger than the sum of its proper divisors (15838944478755).

25421053422045 is a wasteful number, since it uses less digits than its factorization.

25421053422045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11650.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 25421053422045 its reverse (54022435012452), we get a palindrome (79443488434497).

The spelling of 25421053422045 in words is "twenty-five trillion, four hundred twenty-one billion, fifty-three million, four hundred twenty-two thousand, forty-five".