25597040804 has 6 divisors (see below), whose sum is σ = 44794821414. Its totient is φ = 12798520400.

The previous prime is 25597040803. The next prime is 25597040813. The reversal of 25597040804 is 40804079552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20549222500 + 5047818304 = 143350^2 + 71048^2 .

It is not an unprimeable number, because it can be changed into a prime (25597040803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3199630097 + ... + 3199630104.

It is an arithmetic number, because the mean of its divisors is an integer number (7465803569).

Almost surely, 2^25597040804 is an apocalyptic number.

It is an amenable number.

25597040804 is a deficient number, since it is larger than the sum of its proper divisors (19197780610).

25597040804 is a wasteful number, since it uses less digits than its factorization.

25597040804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399260205 (or 6399260203 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 25597040804 in words is "twenty-five billion, five hundred ninety-seven million, forty thousand, eight hundred four".