25195026854 has 16 divisors (see below), whose sum is σ = 38081072400. Its totient is φ = 12501415584.

The previous prime is 25195026823. The next prime is 25195026863. The reversal of 25195026854 is 45862059152.

It is a super-2 number, since 2×25195026854² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25195026799 and 25195026808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658892 + ... + 696080.

It is an arithmetic number, because the mean of its divisors is an integer number (2380067025).

Almost surely, 2^25195026854 is an apocalyptic number.

25195026854 is a deficient number, since it is larger than the sum of its proper divisors (12886045546).

25195026854 is a wasteful number, since it uses less digits than its factorization.

25195026854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39767.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 25195026854 in words is "twenty-five billion, one hundred ninety-five million, twenty-six thousand, eight hundred fifty-four".