25973393457 has 16 divisors (see below), whose sum is σ = 37788004800. Its totient is φ = 15737899200.

The previous prime is 25973393447. The next prime is 25973393483. The reversal of 25973393457 is 75439337952.

It is not a de Polignac number, because 25973393457 - 2⁶ = 25973393393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25973393397 and 25973393406.

It is not an unprimeable number, because it can be changed into a prime (25973393447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63607 + ... + 236627.

It is an arithmetic number, because the mean of its divisors is an integer number (2361750300).

Almost surely, 2^25973393457 is an apocalyptic number.

It is an amenable number.

25973393457 is a deficient number, since it is larger than the sum of its proper divisors (11814611343).

25973393457 is a wasteful number, since it uses less digits than its factorization.

25973393457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177584.

The product of its digits is 21432600, while the sum is 57.

The spelling of 25973393457 in words is "twenty-five billion, nine hundred seventy-three million, three hundred ninety-three thousand, four hundred fifty-seven".