25780575308 has 6 divisors (see below), whose sum is σ = 45116006796. Its totient is φ = 12890287652.

The previous prime is 25780575283. The next prime is 25780575347. The reversal of 25780575308 is 80357508752.

It is a super-2 number, since 2×25780575308² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222571910 + ... + 3222571917.

It is an arithmetic number, because the mean of its divisors is an integer number (7519334466).

Almost surely, 2^25780575308 is an apocalyptic number.

It is an amenable number.

25780575308 is a deficient number, since it is larger than the sum of its proper divisors (19335431488).

25780575308 is a wasteful number, since it uses less digits than its factorization.

25780575308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445143831 (or 6445143829 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 50.

The spelling of 25780575308 in words is "twenty-five billion, seven hundred eighty million, five hundred seventy-five thousand, three hundred eight".