25503042454123 has 32 divisors (see below), whose sum is σ = 28870893497600. Its totient is φ = 22366293215616.

The previous prime is 25503042454067. The next prime is 25503042454159. The reversal of 25503042454123 is 32145424030552.

It is a cyclic number.

It is not a de Polignac number, because 25503042454123 - 2²¹ = 25503040356971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25503042454223) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 77168848 + ... + 77498626.

It is an arithmetic number, because the mean of its divisors is an integer number (902215421800).

Almost surely, 2^{25503042454123} is an apocalyptic number.

25503042454123 is a deficient number, since it is larger than the sum of its proper divisors (3367851043477).

25503042454123 is a wasteful number, since it uses less digits than its factorization.

25503042454123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333611.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 25503042454123 its reverse (32145424030552), we get a palindrome (57648466484675).

The spelling of 25503042454123 in words is "twenty-five trillion, five hundred three billion, forty-two million, four hundred fifty-four thousand, one hundred twenty-three".