25656913052 has 24 divisors (see below), whose sum is σ = 45645828480. Its totient is φ = 12615341760.

The previous prime is 25656913039. The next prime is 25656913063. The reversal of 25656913052 is 25031965652.

It is a junction number, because it is equal to n+sod(n) for n = 25656912994 and 25656913012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466774 + ... + 1484162.

It is an arithmetic number, because the mean of its divisors is an integer number (1901909520).

Almost surely, 2^25656913052 is an apocalyptic number.

It is an amenable number.

25656913052 is a deficient number, since it is larger than the sum of its proper divisors (19988915428).

25656913052 is a wasteful number, since it uses less digits than its factorization.

25656913052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23501 (or 23499 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 25656913052 in words is "twenty-five billion, six hundred fifty-six million, nine hundred thirteen thousand, fifty-two".