25923576064 has 81 divisors (see below), whose sum is σ = 53746646317. Its totient is φ = 12478764032.

The previous prime is 25923576047. The next prime is 25923576101. The reversal of 25923576064 is 46067532952.

The square root of 25923576064 is 161008.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13593694464 + 12329881600 = 116592^2 + 111040^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25923575999 and 25923576017.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 74707539 + ... + 74707885.

Almost surely, 2^25923576064 is an apocalyptic number.

25923576064 is the 161008-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25923576064

25923576064 is an abundant number, since it is smaller than the sum of its proper divisors (27823070253).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25923576064 is an frugal number, since it uses more digits than its factorization.

25923576064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 49.

Multiplying 25923576064 by its sum of digits (49), we get a square (1270255227136 = 1127056²).

The spelling of 25923576064 in words is "twenty-five billion, nine hundred twenty-three million, five hundred seventy-six thousand, sixty-four".