25256038471783 has 12 divisors (see below), whose sum is σ = 29406501420672. Its totient is φ = 21628117536480.

The previous prime is 25256038471771. The next prime is 25256038471799. The reversal of 25256038471783 is 38717483065252.

It is a de Polignac number, because none of the positive numbers 2^k-25256038471783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256038474783) 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 11 ways as a sum of consecutive naturals, for example, 237034758 + ... + 237141283.

It is an arithmetic number, because the mean of its divisors is an integer number (2450541785056).

Almost surely, 2^{25256038471783} is an apocalyptic number.

25256038471783 is a deficient number, since it is larger than the sum of its proper divisors (4150462948889).

25256038471783 is a wasteful number, since it uses less digits than its factorization.

25256038471783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474177142 (or 474177135 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 61.

The spelling of 25256038471783 in words is "twenty-five trillion, two hundred fifty-six billion, thirty-eight million, four hundred seventy-one thousand, seven hundred eighty-three".